Home / 725,988.30-1,001,886.75-403,711.98

Finding the Fourth Proportional to 725,988.30, 1,001,886.75 and 403,711.98

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Solution

The fourth proportional to 725,988.30, 1,001,886.75 and 403,711.98 is: 557,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,988.30 : 1,001,886.75 = 403,711.98 : x
  2. Step 2: Convert to fraction form
    725,988.30/1,001,886.75 = 403,711.98/x
  3. Step 3: Cross multiply
    725,988.30x = 1,001,886.75 × 403,711.98
  4. Step 4: Simplify right side
    725,988.30x = 404,473,683,578.27
  5. Step 5: Solve for x
    x = 404,473,683,578.27/725,988.30
  6. Step 6: Final answer
    x = 557,135.26

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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.