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Finding the Fourth Proportional to 661,149.36, 912,366.96 and 374,695.92

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Solution

The fourth proportional to 661,149.36, 912,366.96 and 374,695.92 is: 517,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,149.36 : 912,366.96 = 374,695.92 : x
  2. Step 2: Convert to fraction form
    661,149.36/912,366.96 = 374,695.92/x
  3. Step 3: Cross multiply
    661,149.36x = 912,366.96 × 374,695.92
  4. Step 4: Simplify right side
    661,149.36x = 341,860,177,454.80
  5. Step 5: Solve for x
    x = 341,860,177,454.80/661,149.36
  6. Step 6: Final answer
    x = 517,069.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.