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Finding the Fourth Proportional to 664,711.70, 996,952.35 and 243,770.90

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Solution

The fourth proportional to 664,711.70, 996,952.35 and 243,770.90 is: 365,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,711.70 : 996,952.35 = 243,770.90 : x
  2. Step 2: Convert to fraction form
    664,711.70/996,952.35 = 243,770.90/x
  3. Step 3: Cross multiply
    664,711.70x = 996,952.35 × 243,770.90
  4. Step 4: Simplify right side
    664,711.70x = 243,027,971,616.62
  5. Step 5: Solve for x
    x = 243,027,971,616.62/664,711.70
  6. Step 6: Final answer
    x = 365,614.10

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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.