Home / 862,711.47-1,190,546.57-500,350.21

Finding the Fourth Proportional to 862,711.47, 1,190,546.57 and 500,350.21

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Solution

The fourth proportional to 862,711.47, 1,190,546.57 and 500,350.21 is: 690,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,711.47 : 1,190,546.57 = 500,350.21 : x
  2. Step 2: Convert to fraction form
    862,711.47/1,190,546.57 = 500,350.21/x
  3. Step 3: Cross multiply
    862,711.47x = 1,190,546.57 × 500,350.21
  4. Step 4: Simplify right side
    862,711.47x = 595,690,217,859.80
  5. Step 5: Solve for x
    x = 595,690,217,859.80/862,711.47
  6. Step 6: Final answer
    x = 690,486.03

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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.