Home / 747,819.54-1,121,877.18-274,509

Finding the Fourth Proportional to 747,819.54, 1,121,877.18 and 274,509

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Solution

The fourth proportional to 747,819.54, 1,121,877.18 and 274,509 is: 411,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,819.54 : 1,121,877.18 = 274,509 : x
  2. Step 2: Convert to fraction form
    747,819.54/1,121,877.18 = 274,509/x
  3. Step 3: Cross multiply
    747,819.54x = 1,121,877.18 × 274,509
  4. Step 4: Simplify right side
    747,819.54x = 307,965,382,804.62
  5. Step 5: Solve for x
    x = 307,965,382,804.62/747,819.54
  6. Step 6: Final answer
    x = 411,817.78

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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.