Home / 747,522.78-1,121,431.86-274,212.24

Finding the Fourth Proportional to 747,522.78, 1,121,431.86 and 274,212.24

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Solution

The fourth proportional to 747,522.78, 1,121,431.86 and 274,212.24 is: 411,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,522.78 : 1,121,431.86 = 274,212.24 : x
  2. Step 2: Convert to fraction form
    747,522.78/1,121,431.86 = 274,212.24/x
  3. Step 3: Cross multiply
    747,522.78x = 1,121,431.86 × 274,212.24
  4. Step 4: Simplify right side
    747,522.78x = 307,510,342,337.97
  5. Step 5: Solve for x
    x = 307,510,342,337.97/747,522.78
  6. Step 6: Final answer
    x = 411,372.54

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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.