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Finding the Fourth Proportional to 550,980.39, 826,093.28 and 280,585.11

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Solution

The fourth proportional to 550,980.39, 826,093.28 and 280,585.11 is: 420,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,980.39 : 826,093.28 = 280,585.11 : x
  2. Step 2: Convert to fraction form
    550,980.39/826,093.28 = 280,585.11/x
  3. Step 3: Cross multiply
    550,980.39x = 826,093.28 × 280,585.11
  4. Step 4: Simplify right side
    550,980.39x = 231,789,472,436.14
  5. Step 5: Solve for x
    x = 231,789,472,436.14/550,980.39
  6. Step 6: Final answer
    x = 420,685.52

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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.