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Finding the Fourth Proportional to 666,751.70, 1,000,026.10 and 217,471.94

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Solution

The fourth proportional to 666,751.70, 1,000,026.10 and 217,471.94 is: 326,174.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,751.70 : 1,000,026.10 = 217,471.94 : x
  2. Step 2: Convert to fraction form
    666,751.70/1,000,026.10 = 217,471.94/x
  3. Step 3: Cross multiply
    666,751.70x = 1,000,026.10 × 217,471.94
  4. Step 4: Simplify right side
    666,751.70x = 217,477,615,039.44
  5. Step 5: Solve for x
    x = 217,477,615,039.44/666,751.70
  6. Step 6: Final answer
    x = 326,174.82

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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.