Home / 730,540.70-1,008,143.25-408,250.70

Finding the Fourth Proportional to 730,540.70, 1,008,143.25 and 408,250.70

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Solution

The fourth proportional to 730,540.70, 1,008,143.25 and 408,250.70 is: 563,384.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,540.70 : 1,008,143.25 = 408,250.70 : x
  2. Step 2: Convert to fraction form
    730,540.70/1,008,143.25 = 408,250.70/x
  3. Step 3: Cross multiply
    730,540.70x = 1,008,143.25 × 408,250.70
  4. Step 4: Simplify right side
    730,540.70x = 411,575,187,512.78
  5. Step 5: Solve for x
    x = 411,575,187,512.78/730,540.70
  6. Step 6: Final answer
    x = 563,384.34

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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.