Home / 752,275.29-1,038,121.15-421,126.59

Finding the Fourth Proportional to 752,275.29, 1,038,121.15 and 421,126.59

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Solution

The fourth proportional to 752,275.29, 1,038,121.15 and 421,126.59 is: 581,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,275.29 : 1,038,121.15 = 421,126.59 : x
  2. Step 2: Convert to fraction form
    752,275.29/1,038,121.15 = 421,126.59/x
  3. Step 3: Cross multiply
    752,275.29x = 1,038,121.15 × 421,126.59
  4. Step 4: Simplify right side
    752,275.29x = 437,180,419,906.38
  5. Step 5: Solve for x
    x = 437,180,419,906.38/752,275.29
  6. Step 6: Final answer
    x = 581,144.20

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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.