Home / 748,340.76-1,122,511.14-274,821.24

Finding the Fourth Proportional to 748,340.76, 1,122,511.14 and 274,821.24

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Solution

The fourth proportional to 748,340.76, 1,122,511.14 and 274,821.24 is: 412,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,340.76 : 1,122,511.14 = 274,821.24 : x
  2. Step 2: Convert to fraction form
    748,340.76/1,122,511.14 = 274,821.24/x
  3. Step 3: Cross multiply
    748,340.76x = 1,122,511.14 × 274,821.24
  4. Step 4: Simplify right side
    748,340.76x = 308,489,903,408.61
  5. Step 5: Solve for x
    x = 308,489,903,408.61/748,340.76
  6. Step 6: Final answer
    x = 412,231.86

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Double scale
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Similar ratio
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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.