Home / 747,580.20-1,121,542.02-215,105.64

Finding the Fourth Proportional to 747,580.20, 1,121,542.02 and 215,105.64

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Solution

The fourth proportional to 747,580.20, 1,121,542.02 and 215,105.64 is: 322,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,580.20 : 1,121,542.02 = 215,105.64 : x
  2. Step 2: Convert to fraction form
    747,580.20/1,121,542.02 = 215,105.64/x
  3. Step 3: Cross multiply
    747,580.20x = 1,121,542.02 × 215,105.64
  4. Step 4: Simplify right side
    747,580.20x = 241,250,013,998.99
  5. Step 5: Solve for x
    x = 241,250,013,998.99/747,580.20
  6. Step 6: Final answer
    x = 322,707.87

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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.