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Finding the Fourth Proportional to 591,646.80, 887,470.20 and 449,929.20

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Solution

The fourth proportional to 591,646.80, 887,470.20 and 449,929.20 is: 674,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,646.80 : 887,470.20 = 449,929.20 : x
  2. Step 2: Convert to fraction form
    591,646.80/887,470.20 = 449,929.20/x
  3. Step 3: Cross multiply
    591,646.80x = 887,470.20 × 449,929.20
  4. Step 4: Simplify right side
    591,646.80x = 399,298,757,109.84
  5. Step 5: Solve for x
    x = 399,298,757,109.84/591,646.80
  6. Step 6: Final answer
    x = 674,893.80

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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.