Home / 747,943.72-1,121,248.68-274,519.24

Finding the Fourth Proportional to 747,943.72, 1,121,248.68 and 274,519.24

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Solution

The fourth proportional to 747,943.72, 1,121,248.68 and 274,519.24 is: 411,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,943.72 : 1,121,248.68 = 274,519.24 : x
  2. Step 2: Convert to fraction form
    747,943.72/1,121,248.68 = 274,519.24/x
  3. Step 3: Cross multiply
    747,943.72x = 1,121,248.68 × 274,519.24
  4. Step 4: Simplify right side
    747,943.72x = 307,804,335,484.60
  5. Step 5: Solve for x
    x = 307,804,335,484.60/747,943.72
  6. Step 6: Final answer
    x = 411,534.09

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Double scale
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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.