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Finding the Fourth Proportional to 479,398.08, 718,910.31 and 179,715.20

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Solution

The fourth proportional to 479,398.08, 718,910.31 and 179,715.20 is: 269,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,398.08 : 718,910.31 = 179,715.20 : x
  2. Step 2: Convert to fraction form
    479,398.08/718,910.31 = 179,715.20/x
  3. Step 3: Cross multiply
    479,398.08x = 718,910.31 × 179,715.20
  4. Step 4: Simplify right side
    479,398.08x = 129,199,106,549.16
  5. Step 5: Solve for x
    x = 129,199,106,549.16/479,398.08
  6. Step 6: Final answer
    x = 269,502.76

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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.