Home / 747,627.60-1,121,441.40-449,029.20

Finding the Fourth Proportional to 747,627.60, 1,121,441.40 and 449,029.20

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Solution

The fourth proportional to 747,627.60, 1,121,441.40 and 449,029.20 is: 673,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,627.60 : 1,121,441.40 = 449,029.20 : x
  2. Step 2: Convert to fraction form
    747,627.60/1,121,441.40 = 449,029.20/x
  3. Step 3: Cross multiply
    747,627.60x = 1,121,441.40 × 449,029.20
  4. Step 4: Simplify right side
    747,627.60x = 503,559,934,688.88
  5. Step 5: Solve for x
    x = 503,559,934,688.88/747,627.60
  6. Step 6: Final answer
    x = 673,543.80

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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.