Home / 749,002.20-1,123,503.30-299,792.40

Finding the Fourth Proportional to 749,002.20, 1,123,503.30 and 299,792.40

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Solution

The fourth proportional to 749,002.20, 1,123,503.30 and 299,792.40 is: 449,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,002.20 : 1,123,503.30 = 299,792.40 : x
  2. Step 2: Convert to fraction form
    749,002.20/1,123,503.30 = 299,792.40/x
  3. Step 3: Cross multiply
    749,002.20x = 1,123,503.30 × 299,792.40
  4. Step 4: Simplify right side
    749,002.20x = 336,817,750,714.92
  5. Step 5: Solve for x
    x = 336,817,750,714.92/749,002.20
  6. Step 6: Final answer
    x = 449,688.60

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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.