Home / 862,590.76-1,190,380.13-500,229.77

Finding the Fourth Proportional to 862,590.76, 1,190,380.13 and 500,229.77

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Solution

The fourth proportional to 862,590.76, 1,190,380.13 and 500,229.77 is: 690,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,590.76 : 1,190,380.13 = 500,229.77 : x
  2. Step 2: Convert to fraction form
    862,590.76/1,190,380.13 = 500,229.77/x
  3. Step 3: Cross multiply
    862,590.76x = 1,190,380.13 × 500,229.77
  4. Step 4: Simplify right side
    862,590.76x = 595,463,578,642.47
  5. Step 5: Solve for x
    x = 595,463,578,642.47/862,590.76
  6. Step 6: Final answer
    x = 690,319.91

Related Problems

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Half scale
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Double scale
Find fourth proportional to 862,591.76, 1,190,381.51 and 500,230.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.