Home / 754,179.30-1,040,471.10-431,715.78

Finding the Fourth Proportional to 754,179.30, 1,040,471.10 and 431,715.78

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Solution

The fourth proportional to 754,179.30, 1,040,471.10 and 431,715.78 is: 595,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,179.30 : 1,040,471.10 = 431,715.78 : x
  2. Step 2: Convert to fraction form
    754,179.30/1,040,471.10 = 431,715.78/x
  3. Step 3: Cross multiply
    754,179.30x = 1,040,471.10 × 431,715.78
  4. Step 4: Simplify right side
    754,179.30x = 449,187,792,503.96
  5. Step 5: Solve for x
    x = 449,187,792,503.96/754,179.30
  6. Step 6: Final answer
    x = 595,598.15

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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.