Home / 814,654.79-1,222,042.13-215,611.89

Finding the Fourth Proportional to 814,654.79, 1,222,042.13 and 215,611.89

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Solution

The fourth proportional to 814,654.79, 1,222,042.13 and 215,611.89 is: 323,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,654.79 : 1,222,042.13 = 215,611.89 : x
  2. Step 2: Convert to fraction form
    814,654.79/1,222,042.13 = 215,611.89/x
  3. Step 3: Cross multiply
    814,654.79x = 1,222,042.13 × 215,611.89
  4. Step 4: Simplify right side
    814,654.79x = 263,486,812,230.87
  5. Step 5: Solve for x
    x = 263,486,812,230.87/814,654.79
  6. Step 6: Final answer
    x = 323,433.70

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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.