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Finding the Fourth Proportional to 666,750.30, 999,250.65 and 267,063.90

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Solution

The fourth proportional to 666,750.30, 999,250.65 and 267,063.90 is: 400,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,750.30 : 999,250.65 = 267,063.90 : x
  2. Step 2: Convert to fraction form
    666,750.30/999,250.65 = 267,063.90/x
  3. Step 3: Cross multiply
    666,750.30x = 999,250.65 × 267,063.90
  4. Step 4: Simplify right side
    666,750.30x = 266,863,775,666.54
  5. Step 5: Solve for x
    x = 266,863,775,666.54/666,750.30
  6. Step 6: Final answer
    x = 400,245.45

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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.