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Finding the Fourth Proportional to 664,520.30, 996,780.45 and 465,065.90

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Solution

The fourth proportional to 664,520.30, 996,780.45 and 465,065.90 is: 697,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,520.30 : 996,780.45 = 465,065.90 : x
  2. Step 2: Convert to fraction form
    664,520.30/996,780.45 = 465,065.90/x
  3. Step 3: Cross multiply
    664,520.30x = 996,780.45 × 465,065.90
  4. Step 4: Simplify right side
    664,520.30x = 463,568,597,081.66
  5. Step 5: Solve for x
    x = 463,568,597,081.66/664,520.30
  6. Step 6: Final answer
    x = 697,598.85

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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.