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Finding the Fourth Proportional to 664,007.40, 994,455.90 and 452,500.20

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Solution

The fourth proportional to 664,007.40, 994,455.90 and 452,500.20 is: 677,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,007.40 : 994,455.90 = 452,500.20 : x
  2. Step 2: Convert to fraction form
    664,007.40/994,455.90 = 452,500.20/x
  3. Step 3: Cross multiply
    664,007.40x = 994,455.90 × 452,500.20
  4. Step 4: Simplify right side
    664,007.40x = 449,991,493,641.18
  5. Step 5: Solve for x
    x = 449,991,493,641.18/664,007.40
  6. Step 6: Final answer
    x = 677,690.48

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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.