Home / 781,446.64-1,172,193.86-269,106.28

Finding the Fourth Proportional to 781,446.64, 1,172,193.86 and 269,106.28

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Solution

The fourth proportional to 781,446.64, 1,172,193.86 and 269,106.28 is: 403,667.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,446.64 : 1,172,193.86 = 269,106.28 : x
  2. Step 2: Convert to fraction form
    781,446.64/1,172,193.86 = 269,106.28/x
  3. Step 3: Cross multiply
    781,446.64x = 1,172,193.86 × 269,106.28
  4. Step 4: Simplify right side
    781,446.64x = 315,444,729,103.44
  5. Step 5: Solve for x
    x = 315,444,729,103.44/781,446.64
  6. Step 6: Final answer
    x = 403,667.65

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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.