Home / 728,672.73-1,005,581.30-406,348.22

Finding the Fourth Proportional to 728,672.73, 1,005,581.30 and 406,348.22

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Solution

The fourth proportional to 728,672.73, 1,005,581.30 and 406,348.22 is: 560,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,672.73 : 1,005,581.30 = 406,348.22 : x
  2. Step 2: Convert to fraction form
    728,672.73/1,005,581.30 = 406,348.22/x
  3. Step 3: Cross multiply
    728,672.73x = 1,005,581.30 × 406,348.22
  4. Step 4: Simplify right side
    728,672.73x = 408,616,164,260.64
  5. Step 5: Solve for x
    x = 408,616,164,260.64/728,672.73
  6. Step 6: Final answer
    x = 560,767.75

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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.