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Finding the Fourth Proportional to 666,349.84, 999,523.96 and 217,069.98

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Solution

The fourth proportional to 666,349.84, 999,523.96 and 217,069.98 is: 325,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,349.84 : 999,523.96 = 217,069.98 : x
  2. Step 2: Convert to fraction form
    666,349.84/999,523.96 = 217,069.98/x
  3. Step 3: Cross multiply
    666,349.84x = 999,523.96 × 217,069.98
  4. Step 4: Simplify right side
    666,349.84x = 216,966,646,006.72
  5. Step 5: Solve for x
    x = 216,966,646,006.72/666,349.84
  6. Step 6: Final answer
    x = 325,604.71

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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.