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Finding the Fourth Proportional to 664,672.60, 997,008.90 and 452,096.20

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Solution

The fourth proportional to 664,672.60, 997,008.90 and 452,096.20 is: 678,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,672.60 : 997,008.90 = 452,096.20 : x
  2. Step 2: Convert to fraction form
    664,672.60/997,008.90 = 452,096.20/x
  3. Step 3: Cross multiply
    664,672.60x = 997,008.90 × 452,096.20
  4. Step 4: Simplify right side
    664,672.60x = 450,743,935,056.18
  5. Step 5: Solve for x
    x = 450,743,935,056.18/664,672.60
  6. Step 6: Final answer
    x = 678,144.30

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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.