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Finding the Fourth Proportional to 479,029.38, 718,659.51 and 179,512.57

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Solution

The fourth proportional to 479,029.38, 718,659.51 and 179,512.57 is: 269,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,029.38 : 718,659.51 = 179,512.57 : x
  2. Step 2: Convert to fraction form
    479,029.38/718,659.51 = 179,512.57/x
  3. Step 3: Cross multiply
    479,029.38x = 718,659.51 × 179,512.57
  4. Step 4: Simplify right side
    479,029.38x = 129,008,415,595.04
  5. Step 5: Solve for x
    x = 129,008,415,595.04/479,029.38
  6. Step 6: Final answer
    x = 269,312.12

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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.