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Finding the Fourth Proportional to 664,006.40, 994,454.40 and 452,499.20

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Solution

The fourth proportional to 664,006.40, 994,454.40 and 452,499.20 is: 677,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,006.40 : 994,454.40 = 452,499.20 : x
  2. Step 2: Convert to fraction form
    664,006.40/994,454.40 = 452,499.20/x
  3. Step 3: Cross multiply
    664,006.40x = 994,454.40 × 452,499.20
  4. Step 4: Simplify right side
    664,006.40x = 449,989,820,436.48
  5. Step 5: Solve for x
    x = 449,989,820,436.48/664,006.40
  6. Step 6: Final answer
    x = 677,688.98

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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.