Home / 664,500.10-996,895.95-215,241.70

Finding the Fourth Proportional to 664,500.10, 996,895.95 and 215,241.70

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Solution

The fourth proportional to 664,500.10, 996,895.95 and 215,241.70 is: 322,909.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,500.10 : 996,895.95 = 215,241.70 : x
  2. Step 2: Convert to fraction form
    664,500.10/996,895.95 = 215,241.70/x
  3. Step 3: Cross multiply
    664,500.10x = 996,895.95 × 215,241.70
  4. Step 4: Simplify right side
    664,500.10x = 214,573,579,001.12
  5. Step 5: Solve for x
    x = 214,573,579,001.12/664,500.10
  6. Step 6: Final answer
    x = 322,909.78

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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.