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Finding the Fourth Proportional to 661,498.60, 991,227.30 and 492,224.80

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Solution

The fourth proportional to 661,498.60, 991,227.30 and 492,224.80 is: 737,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,498.60 : 991,227.30 = 492,224.80 : x
  2. Step 2: Convert to fraction form
    661,498.60/991,227.30 = 492,224.80/x
  3. Step 3: Cross multiply
    661,498.60x = 991,227.30 × 492,224.80
  4. Step 4: Simplify right side
    661,498.60x = 487,906,659,497.04
  5. Step 5: Solve for x
    x = 487,906,659,497.04/661,498.60
  6. Step 6: Final answer
    x = 737,577.77

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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.