Home / 729,192.89-1,006,286.24-402,505.97

Finding the Fourth Proportional to 729,192.89, 1,006,286.24 and 402,505.97

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Solution

The fourth proportional to 729,192.89, 1,006,286.24 and 402,505.97 is: 555,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,192.89 : 1,006,286.24 = 402,505.97 : x
  2. Step 2: Convert to fraction form
    729,192.89/1,006,286.24 = 402,505.97/x
  3. Step 3: Cross multiply
    729,192.89x = 1,006,286.24 × 402,505.97
  4. Step 4: Simplify right side
    729,192.89x = 405,036,212,084.89
  5. Step 5: Solve for x
    x = 405,036,212,084.89/729,192.89
  6. Step 6: Final answer
    x = 555,458.26

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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.