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Finding the Fourth Proportional to 666,580.89, 999,848.86 and 267,114.41

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Solution

The fourth proportional to 666,580.89, 999,848.86 and 267,114.41 is: 400,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,580.89 : 999,848.86 = 267,114.41 : x
  2. Step 2: Convert to fraction form
    666,580.89/999,848.86 = 267,114.41/x
  3. Step 3: Cross multiply
    666,580.89x = 999,848.86 × 267,114.41
  4. Step 4: Simplify right side
    666,580.89x = 267,074,037,912.99
  5. Step 5: Solve for x
    x = 267,074,037,912.99/666,580.89
  6. Step 6: Final answer
    x = 400,662.61

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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.