Home / 729,001.09-1,006,020.03-406,691.96

Finding the Fourth Proportional to 729,001.09, 1,006,020.03 and 406,691.96

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Solution

The fourth proportional to 729,001.09, 1,006,020.03 and 406,691.96 is: 561,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,001.09 : 1,006,020.03 = 406,691.96 : x
  2. Step 2: Convert to fraction form
    729,001.09/1,006,020.03 = 406,691.96/x
  3. Step 3: Cross multiply
    729,001.09x = 1,006,020.03 × 406,691.96
  4. Step 4: Simplify right side
    729,001.09x = 409,140,257,799.96
  5. Step 5: Solve for x
    x = 409,140,257,799.96/729,001.09
  6. Step 6: Final answer
    x = 561,234.08

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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.