Home / 729,489.33-1,006,691.42-423,640.91

Finding the Fourth Proportional to 729,489.33, 1,006,691.42 and 423,640.91

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Solution

The fourth proportional to 729,489.33, 1,006,691.42 and 423,640.91 is: 584,622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,489.33 : 1,006,691.42 = 423,640.91 : x
  2. Step 2: Convert to fraction form
    729,489.33/1,006,691.42 = 423,640.91/x
  3. Step 3: Cross multiply
    729,489.33x = 1,006,691.42 × 423,640.91
  4. Step 4: Simplify right side
    729,489.33x = 426,475,662,106.33
  5. Step 5: Solve for x
    x = 426,475,662,106.33/729,489.33
  6. Step 6: Final answer
    x = 584,622.21

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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.