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Finding the Fourth Proportional to 647,956.80, 971,935.20 and 227,080.80

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Solution

The fourth proportional to 647,956.80, 971,935.20 and 227,080.80 is: 340,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,956.80 : 971,935.20 = 227,080.80 : x
  2. Step 2: Convert to fraction form
    647,956.80/971,935.20 = 227,080.80/x
  3. Step 3: Cross multiply
    647,956.80x = 971,935.20 × 227,080.80
  4. Step 4: Simplify right side
    647,956.80x = 220,707,822,764.16
  5. Step 5: Solve for x
    x = 220,707,822,764.16/647,956.80
  6. Step 6: Final answer
    x = 340,621.20

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Similar ratio
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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.