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Finding the Fourth Proportional to 666,557.16, 999,830.94 and 267,192.12

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Solution

The fourth proportional to 666,557.16, 999,830.94 and 267,192.12 is: 400,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,557.16 : 999,830.94 = 267,192.12 : x
  2. Step 2: Convert to fraction form
    666,557.16/999,830.94 = 267,192.12/x
  3. Step 3: Cross multiply
    666,557.16x = 999,830.94 × 267,192.12
  4. Step 4: Simplify right side
    666,557.16x = 267,146,948,500.19
  5. Step 5: Solve for x
    x = 267,146,948,500.19/666,557.16
  6. Step 6: Final answer
    x = 400,786.26

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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.