Home / 775,306.82-1,162,945.65-422,565.59

Finding the Fourth Proportional to 775,306.82, 1,162,945.65 and 422,565.59

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Solution

The fourth proportional to 775,306.82, 1,162,945.65 and 422,565.59 is: 633,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,306.82 : 1,162,945.65 = 422,565.59 : x
  2. Step 2: Convert to fraction form
    775,306.82/1,162,945.65 = 422,565.59/x
  3. Step 3: Cross multiply
    775,306.82x = 1,162,945.65 × 422,565.59
  4. Step 4: Simplify right side
    775,306.82x = 491,420,819,222.17
  5. Step 5: Solve for x
    x = 491,420,819,222.17/775,306.82
  6. Step 6: Final answer
    x = 633,840.44

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1.5x scale

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.