Home / 862,691.84-1,190,519.44-500,330.54

Finding the Fourth Proportional to 862,691.84, 1,190,519.44 and 500,330.54

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Solution

The fourth proportional to 862,691.84, 1,190,519.44 and 500,330.54 is: 690,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,691.84 : 1,190,519.44 = 500,330.54 : x
  2. Step 2: Convert to fraction form
    862,691.84/1,190,519.44 = 500,330.54/x
  3. Step 3: Cross multiply
    862,691.84x = 1,190,519.44 × 500,330.54
  4. Step 4: Simplify right side
    862,691.84x = 595,653,234,295.70
  5. Step 5: Solve for x
    x = 595,653,234,295.70/862,691.84
  6. Step 6: Final answer
    x = 690,458.87

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Double scale
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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.