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Finding the Fourth Proportional to 516,919.97, 775,277.73 and 491,286.61

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Solution

The fourth proportional to 516,919.97, 775,277.73 and 491,286.61 is: 736,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,919.97 : 775,277.73 = 491,286.61 : x
  2. Step 2: Convert to fraction form
    516,919.97/775,277.73 = 491,286.61/x
  3. Step 3: Cross multiply
    516,919.97x = 775,277.73 × 491,286.61
  4. Step 4: Simplify right side
    516,919.97x = 380,883,565,770.10
  5. Step 5: Solve for x
    x = 380,883,565,770.10/516,919.97
  6. Step 6: Final answer
    x = 736,832.76

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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.