Home / 725,375.92-1,000,972.85-403,066.80

Finding the Fourth Proportional to 725,375.92, 1,000,972.85 and 403,066.80

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Solution

The fourth proportional to 725,375.92, 1,000,972.85 and 403,066.80 is: 556,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,375.92 : 1,000,972.85 = 403,066.80 : x
  2. Step 2: Convert to fraction form
    725,375.92/1,000,972.85 = 403,066.80/x
  3. Step 3: Cross multiply
    725,375.92x = 1,000,972.85 × 403,066.80
  4. Step 4: Simplify right side
    725,375.92x = 403,458,918,531.52
  5. Step 5: Solve for x
    x = 403,458,918,531.52/725,375.92
  6. Step 6: Final answer
    x = 556,206.66

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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.