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Finding the Fourth Proportional to 500,578.43, 750,859.69 and 121,502.30

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Solution

The fourth proportional to 500,578.43, 750,859.69 and 121,502.30 is: 182,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,578.43 : 750,859.69 = 121,502.30 : x
  2. Step 2: Convert to fraction form
    500,578.43/750,859.69 = 121,502.30/x
  3. Step 3: Cross multiply
    500,578.43x = 750,859.69 × 121,502.30
  4. Step 4: Simplify right side
    500,578.43x = 91,231,179,312.29
  5. Step 5: Solve for x
    x = 91,231,179,312.29/500,578.43
  6. Step 6: Final answer
    x = 182,251.52

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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.