Home / 748,910.20-1,123,511.10-322,445.20

Finding the Fourth Proportional to 748,910.20, 1,123,511.10 and 322,445.20

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Solution

The fourth proportional to 748,910.20, 1,123,511.10 and 322,445.20 is: 483,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,910.20 : 1,123,511.10 = 322,445.20 : x
  2. Step 2: Convert to fraction form
    748,910.20/1,123,511.10 = 322,445.20/x
  3. Step 3: Cross multiply
    748,910.20x = 1,123,511.10 × 322,445.20
  4. Step 4: Simplify right side
    748,910.20x = 362,270,761,341.72
  5. Step 5: Solve for x
    x = 362,270,761,341.72/748,910.20
  6. Step 6: Final answer
    x = 483,730.57

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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.