Home / 725,126.40-1,000,679.76-402,841.44

Finding the Fourth Proportional to 725,126.40, 1,000,679.76 and 402,841.44

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Solution

The fourth proportional to 725,126.40, 1,000,679.76 and 402,841.44 is: 555,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,126.40 : 1,000,679.76 = 402,841.44 : x
  2. Step 2: Convert to fraction form
    725,126.40/1,000,679.76 = 402,841.44/x
  3. Step 3: Cross multiply
    725,126.40x = 1,000,679.76 × 402,841.44
  4. Step 4: Simplify right side
    725,126.40x = 403,115,275,497.25
  5. Step 5: Solve for x
    x = 403,115,275,497.25/725,126.40
  6. Step 6: Final answer
    x = 555,924.15

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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.