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Finding the Fourth Proportional to 666,658.74, 1,000,092 and 217,275.35

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Solution

The fourth proportional to 666,658.74, 1,000,092 and 217,275.35 is: 325,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,658.74 : 1,000,092 = 217,275.35 : x
  2. Step 2: Convert to fraction form
    666,658.74/1,000,092 = 217,275.35/x
  3. Step 3: Cross multiply
    666,658.74x = 1,000,092 × 217,275.35
  4. Step 4: Simplify right side
    666,658.74x = 217,295,339,332.20
  5. Step 5: Solve for x
    x = 217,295,339,332.20/666,658.74
  6. Step 6: Final answer
    x = 325,946.88

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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.