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Finding the Fourth Proportional to 666,047.41, 998,808.13 and 266,613.73

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Solution

The fourth proportional to 666,047.41, 998,808.13 and 266,613.73 is: 399,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,047.41 : 998,808.13 = 266,613.73 : x
  2. Step 2: Convert to fraction form
    666,047.41/998,808.13 = 266,613.73/x
  3. Step 3: Cross multiply
    666,047.41x = 998,808.13 × 266,613.73
  4. Step 4: Simplify right side
    666,047.41x = 266,295,961,093.63
  5. Step 5: Solve for x
    x = 266,295,961,093.63/666,047.41
  6. Step 6: Final answer
    x = 399,815.32

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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.