Home / 729,383.65-1,006,562.36-402,735.04

Finding the Fourth Proportional to 729,383.65, 1,006,562.36 and 402,735.04

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Solution

The fourth proportional to 729,383.65, 1,006,562.36 and 402,735.04 is: 555,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,383.65 : 1,006,562.36 = 402,735.04 : x
  2. Step 2: Convert to fraction form
    729,383.65/1,006,562.36 = 402,735.04/x
  3. Step 3: Cross multiply
    729,383.65x = 1,006,562.36 × 402,735.04
  4. Step 4: Simplify right side
    729,383.65x = 405,377,930,807.53
  5. Step 5: Solve for x
    x = 405,377,930,807.53/729,383.65
  6. Step 6: Final answer
    x = 555,781.49

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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.