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Finding the Fourth Proportional to 666,752.70, 1,000,027.60 and 217,472.94

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Solution

The fourth proportional to 666,752.70, 1,000,027.60 and 217,472.94 is: 326,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,752.70 : 1,000,027.60 = 217,472.94 : x
  2. Step 2: Convert to fraction form
    666,752.70/1,000,027.60 = 217,472.94/x
  3. Step 3: Cross multiply
    666,752.70x = 1,000,027.60 × 217,472.94
  4. Step 4: Simplify right side
    666,752.70x = 217,478,942,253.14
  5. Step 5: Solve for x
    x = 217,478,942,253.14/666,752.70
  6. Step 6: Final answer
    x = 326,176.32

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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.