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Finding the Fourth Proportional to 667,632, 1,001,605.50 and 218,351.10

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Solution

The fourth proportional to 667,632, 1,001,605.50 and 218,351.10 is: 327,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,632 : 1,001,605.50 = 218,351.10 : x
  2. Step 2: Convert to fraction form
    667,632/1,001,605.50 = 218,351.10/x
  3. Step 3: Cross multiply
    667,632x = 1,001,605.50 × 218,351.10
  4. Step 4: Simplify right side
    667,632x = 218,701,662,691.05
  5. Step 5: Solve for x
    x = 218,701,662,691.05/667,632
  6. Step 6: Final answer
    x = 327,578.16

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1.5x scale

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.