Home / 725,987.80-1,001,886.06-403,711.48

Finding the Fourth Proportional to 725,987.80, 1,001,886.06 and 403,711.48

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Solution

The fourth proportional to 725,987.80, 1,001,886.06 and 403,711.48 is: 557,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,987.80 : 1,001,886.06 = 403,711.48 : x
  2. Step 2: Convert to fraction form
    725,987.80/1,001,886.06 = 403,711.48/x
  3. Step 3: Cross multiply
    725,987.80x = 1,001,886.06 × 403,711.48
  4. Step 4: Simplify right side
    725,987.80x = 404,472,904,073.97
  5. Step 5: Solve for x
    x = 404,472,904,073.97/725,987.80
  6. Step 6: Final answer
    x = 557,134.57

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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.