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Finding the Fourth Proportional to 500,576.88, 750,859.02 and 121,500.78

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Solution

The fourth proportional to 500,576.88, 750,859.02 and 121,500.78 is: 182,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,576.88 : 750,859.02 = 121,500.78 : x
  2. Step 2: Convert to fraction form
    500,576.88/750,859.02 = 121,500.78/x
  3. Step 3: Cross multiply
    500,576.88x = 750,859.02 × 121,500.78
  4. Step 4: Simplify right side
    500,576.88x = 91,229,956,600.04
  5. Step 5: Solve for x
    x = 91,229,956,600.04/500,576.88
  6. Step 6: Final answer
    x = 182,249.64

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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.