Home / 725,897.52-1,001,712.32-399,207.72

Finding the Fourth Proportional to 725,897.52, 1,001,712.32 and 399,207.72

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Solution

The fourth proportional to 725,897.52, 1,001,712.32 and 399,207.72 is: 550,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,897.52 : 1,001,712.32 = 399,207.72 : x
  2. Step 2: Convert to fraction form
    725,897.52/1,001,712.32 = 399,207.72/x
  3. Step 3: Cross multiply
    725,897.52x = 1,001,712.32 × 399,207.72
  4. Step 4: Simplify right side
    725,897.52x = 399,891,291,363.11
  5. Step 5: Solve for x
    x = 399,891,291,363.11/725,897.52
  6. Step 6: Final answer
    x = 550,892.21

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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.