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Finding the Fourth Proportional to 666,662.76, 1,000,098 and 217,279.36

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Solution

The fourth proportional to 666,662.76, 1,000,098 and 217,279.36 is: 325,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,662.76 : 1,000,098 = 217,279.36 : x
  2. Step 2: Convert to fraction form
    666,662.76/1,000,098 = 217,279.36/x
  3. Step 3: Cross multiply
    666,662.76x = 1,000,098 × 217,279.36
  4. Step 4: Simplify right side
    666,662.76x = 217,300,653,377.28
  5. Step 5: Solve for x
    x = 217,300,653,377.28/666,662.76
  6. Step 6: Final answer
    x = 325,952.89

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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.