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Finding the Fourth Proportional to 666,651.78, 1,000,102.20 and 267,323.81

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Solution

The fourth proportional to 666,651.78, 1,000,102.20 and 267,323.81 is: 401,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,651.78 : 1,000,102.20 = 267,323.81 : x
  2. Step 2: Convert to fraction form
    666,651.78/1,000,102.20 = 267,323.81/x
  3. Step 3: Cross multiply
    666,651.78x = 1,000,102.20 × 267,323.81
  4. Step 4: Simplify right side
    666,651.78x = 267,351,125,492.87
  5. Step 5: Solve for x
    x = 267,351,125,492.87/666,651.78
  6. Step 6: Final answer
    x = 401,035.64

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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.