Home / 747,913.83-1,121,575.47-274,340.85

Finding the Fourth Proportional to 747,913.83, 1,121,575.47 and 274,340.85

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Solution

The fourth proportional to 747,913.83, 1,121,575.47 and 274,340.85 is: 411,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,913.83 : 1,121,575.47 = 274,340.85 : x
  2. Step 2: Convert to fraction form
    747,913.83/1,121,575.47 = 274,340.85/x
  3. Step 3: Cross multiply
    747,913.83x = 1,121,575.47 × 274,340.85
  4. Step 4: Simplify right side
    747,913.83x = 307,693,967,778.95
  5. Step 5: Solve for x
    x = 307,693,967,778.95/747,913.83
  6. Step 6: Final answer
    x = 411,402.97

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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.