Home / 725,906.76-1,001,699.25-399,242.43

Finding the Fourth Proportional to 725,906.76, 1,001,699.25 and 399,242.43

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Solution

The fourth proportional to 725,906.76, 1,001,699.25 and 399,242.43 is: 550,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,906.76 : 1,001,699.25 = 399,242.43 : x
  2. Step 2: Convert to fraction form
    725,906.76/1,001,699.25 = 399,242.43/x
  3. Step 3: Cross multiply
    725,906.76x = 1,001,699.25 × 399,242.43
  4. Step 4: Simplify right side
    725,906.76x = 399,920,840,702.97
  5. Step 5: Solve for x
    x = 399,920,840,702.97/725,906.76
  6. Step 6: Final answer
    x = 550,925.91

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1.5x scale

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.