Home / 723,691.20-1,085,121.50-274,125.34

Finding the Fourth Proportional to 723,691.20, 1,085,121.50 and 274,125.34

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Solution

The fourth proportional to 723,691.20, 1,085,121.50 and 274,125.34 is: 411,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,691.20 : 1,085,121.50 = 274,125.34 : x
  2. Step 2: Convert to fraction form
    723,691.20/1,085,121.50 = 274,125.34/x
  3. Step 3: Cross multiply
    723,691.20x = 1,085,121.50 × 274,125.34
  4. Step 4: Simplify right side
    723,691.20x = 297,459,300,114.59
  5. Step 5: Solve for x
    x = 297,459,300,114.59/723,691.20
  6. Step 6: Final answer
    x = 411,030.70

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Double scale
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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.