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Finding the Fourth Proportional to 664,005.40, 994,452.90 and 452,498.20

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Solution

The fourth proportional to 664,005.40, 994,452.90 and 452,498.20 is: 677,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,005.40 : 994,452.90 = 452,498.20 : x
  2. Step 2: Convert to fraction form
    664,005.40/994,452.90 = 452,498.20/x
  3. Step 3: Cross multiply
    664,005.40x = 994,452.90 × 452,498.20
  4. Step 4: Simplify right side
    664,005.40x = 449,988,147,234.78
  5. Step 5: Solve for x
    x = 449,988,147,234.78/664,005.40
  6. Step 6: Final answer
    x = 677,687.48

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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.