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Finding the Fourth Proportional to 479,408.67, 718,926.08 and 179,725.91

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Solution

The fourth proportional to 479,408.67, 718,926.08 and 179,725.91 is: 269,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,408.67 : 718,926.08 = 179,725.91 : x
  2. Step 2: Convert to fraction form
    479,408.67/718,926.08 = 179,725.91/x
  3. Step 3: Cross multiply
    479,408.67x = 718,926.08 × 179,725.91
  4. Step 4: Simplify right side
    479,408.67x = 129,209,639,457.47
  5. Step 5: Solve for x
    x = 129,209,639,457.47/479,408.67
  6. Step 6: Final answer
    x = 269,518.78

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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.