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Finding the Fourth Proportional to 664,327.80, 996,491.70 and 461,374.20

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Solution

The fourth proportional to 664,327.80, 996,491.70 and 461,374.20 is: 692,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,327.80 : 996,491.70 = 461,374.20 : x
  2. Step 2: Convert to fraction form
    664,327.80/996,491.70 = 461,374.20/x
  3. Step 3: Cross multiply
    664,327.80x = 996,491.70 × 461,374.20
  4. Step 4: Simplify right side
    664,327.80x = 459,755,560,894.14
  5. Step 5: Solve for x
    x = 459,755,560,894.14/664,327.80
  6. Step 6: Final answer
    x = 692,061.30

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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.