Home / 661,981.10-991,951.05-492,707.30

Finding the Fourth Proportional to 661,981.10, 991,951.05 and 492,707.30

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Solution

The fourth proportional to 661,981.10, 991,951.05 and 492,707.30 is: 738,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,981.10 : 991,951.05 = 492,707.30 : x
  2. Step 2: Convert to fraction form
    661,981.10/991,951.05 = 492,707.30/x
  3. Step 3: Cross multiply
    661,981.10x = 991,951.05 × 492,707.30
  4. Step 4: Simplify right side
    661,981.10x = 488,741,523,577.67
  5. Step 5: Solve for x
    x = 488,741,523,577.67/661,981.10
  6. Step 6: Final answer
    x = 738,301.33

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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.