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Finding the Fourth Proportional to 664,690.60, 997,035.90 and 452,114.20

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Solution

The fourth proportional to 664,690.60, 997,035.90 and 452,114.20 is: 678,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,690.60 : 997,035.90 = 452,114.20 : x
  2. Step 2: Convert to fraction form
    664,690.60/997,035.90 = 452,114.20/x
  3. Step 3: Cross multiply
    664,690.60x = 997,035.90 × 452,114.20
  4. Step 4: Simplify right side
    664,690.60x = 450,774,088,299.78
  5. Step 5: Solve for x
    x = 450,774,088,299.78/664,690.60
  6. Step 6: Final answer
    x = 678,171.30

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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.