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Finding the Fourth Proportional to 522,266.78, 783,400.17 and 344,732.28

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Solution

The fourth proportional to 522,266.78, 783,400.17 and 344,732.28 is: 517,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,266.78 : 783,400.17 = 344,732.28 : x
  2. Step 2: Convert to fraction form
    522,266.78/783,400.17 = 344,732.28/x
  3. Step 3: Cross multiply
    522,266.78x = 783,400.17 × 344,732.28
  4. Step 4: Simplify right side
    522,266.78x = 270,063,325,111.48
  5. Step 5: Solve for x
    x = 270,063,325,111.48/522,266.78
  6. Step 6: Final answer
    x = 517,098.41

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.