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Finding the Fourth Proportional to 666,350.49, 999,524.96 and 217,070.64

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Solution

The fourth proportional to 666,350.49, 999,524.96 and 217,070.64 is: 325,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,350.49 : 999,524.96 = 217,070.64 : x
  2. Step 2: Convert to fraction form
    666,350.49/999,524.96 = 217,070.64/x
  3. Step 3: Cross multiply
    666,350.49x = 999,524.96 × 217,070.64
  4. Step 4: Simplify right side
    666,350.49x = 216,967,522,763.17
  5. Step 5: Solve for x
    x = 216,967,522,763.17/666,350.49
  6. Step 6: Final answer
    x = 325,605.71

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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.