Home / 730,422.75-1,007,988.45-408,146.43

Finding the Fourth Proportional to 730,422.75, 1,007,988.45 and 408,146.43

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Solution

The fourth proportional to 730,422.75, 1,007,988.45 and 408,146.43 is: 563,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,422.75 : 1,007,988.45 = 408,146.43 : x
  2. Step 2: Convert to fraction form
    730,422.75/1,007,988.45 = 408,146.43/x
  3. Step 3: Cross multiply
    730,422.75x = 1,007,988.45 × 408,146.43
  4. Step 4: Simplify right side
    730,422.75x = 411,406,887,348.73
  5. Step 5: Solve for x
    x = 411,406,887,348.73/730,422.75
  6. Step 6: Final answer
    x = 563,244.90

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Double scale
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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.