Home / 730,520.79-1,008,140.22-408,231.66

Finding the Fourth Proportional to 730,520.79, 1,008,140.22 and 408,231.66

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Solution

The fourth proportional to 730,520.79, 1,008,140.22 and 408,231.66 is: 563,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,520.79 : 1,008,140.22 = 408,231.66 : x
  2. Step 2: Convert to fraction form
    730,520.79/1,008,140.22 = 408,231.66/x
  3. Step 3: Cross multiply
    730,520.79x = 1,008,140.22 × 408,231.66
  4. Step 4: Simplify right side
    730,520.79x = 411,554,755,523.37
  5. Step 5: Solve for x
    x = 411,554,755,523.37/730,520.79
  6. Step 6: Final answer
    x = 563,371.72

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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.