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Finding the Fourth Proportional to 666,046.41, 998,806.64 and 266,612.73

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Solution

The fourth proportional to 666,046.41, 998,806.64 and 266,612.73 is: 399,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,046.41 : 998,806.64 = 266,612.73 : x
  2. Step 2: Convert to fraction form
    666,046.41/998,806.64 = 266,612.73/x
  3. Step 3: Cross multiply
    666,046.41x = 998,806.64 × 266,612.73
  4. Step 4: Simplify right side
    666,046.41x = 266,294,563,699.46
  5. Step 5: Solve for x
    x = 266,294,563,699.46/666,046.41
  6. Step 6: Final answer
    x = 399,813.83

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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.