Home / 911,146.20-1,367,108.10-437,587.80

Finding the Fourth Proportional to 911,146.20, 1,367,108.10 and 437,587.80

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Solution

The fourth proportional to 911,146.20, 1,367,108.10 and 437,587.80 is: 656,568.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,146.20 : 1,367,108.10 = 437,587.80 : x
  2. Step 2: Convert to fraction form
    911,146.20/1,367,108.10 = 437,587.80/x
  3. Step 3: Cross multiply
    911,146.20x = 1,367,108.10 × 437,587.80
  4. Step 4: Simplify right side
    911,146.20x = 598,229,825,841.18
  5. Step 5: Solve for x
    x = 598,229,825,841.18/911,146.20
  6. Step 6: Final answer
    x = 656,568.43

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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.