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Finding the Fourth Proportional to 664,267.70, 996,401.55 and 658,046.90

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Solution

The fourth proportional to 664,267.70, 996,401.55 and 658,046.90 is: 987,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,267.70 : 996,401.55 = 658,046.90 : x
  2. Step 2: Convert to fraction form
    664,267.70/996,401.55 = 658,046.90/x
  3. Step 3: Cross multiply
    664,267.70x = 996,401.55 × 658,046.90
  4. Step 4: Simplify right side
    664,267.70x = 655,678,951,132.70
  5. Step 5: Solve for x
    x = 655,678,951,132.70/664,267.70
  6. Step 6: Final answer
    x = 987,070.35

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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.