Home / 781,464.87-1,172,221.65-269,124.75

Finding the Fourth Proportional to 781,464.87, 1,172,221.65 and 269,124.75

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Solution

The fourth proportional to 781,464.87, 1,172,221.65 and 269,124.75 is: 403,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,464.87 : 1,172,221.65 = 269,124.75 : x
  2. Step 2: Convert to fraction form
    781,464.87/1,172,221.65 = 269,124.75/x
  3. Step 3: Cross multiply
    781,464.87x = 1,172,221.65 × 269,124.75
  4. Step 4: Simplify right side
    781,464.87x = 315,473,858,500.84
  5. Step 5: Solve for x
    x = 315,473,858,500.84/781,464.87
  6. Step 6: Final answer
    x = 403,695.51

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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.