Home / 754,121.52-1,040,693.67-409,957.38

Finding the Fourth Proportional to 754,121.52, 1,040,693.67 and 409,957.38

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Solution

The fourth proportional to 754,121.52, 1,040,693.67 and 409,957.38 is: 565,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,121.52 : 1,040,693.67 = 409,957.38 : x
  2. Step 2: Convert to fraction form
    754,121.52/1,040,693.67 = 409,957.38/x
  3. Step 3: Cross multiply
    754,121.52x = 1,040,693.67 × 409,957.38
  4. Step 4: Simplify right side
    754,121.52x = 426,640,050,335.79
  5. Step 5: Solve for x
    x = 426,640,050,335.79/754,121.52
  6. Step 6: Final answer
    x = 565,744.43

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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.