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Finding the Fourth Proportional to 479,012.48, 718,782 and 179,699.84

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Solution

The fourth proportional to 479,012.48, 718,782 and 179,699.84 is: 269,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,012.48 : 718,782 = 179,699.84 : x
  2. Step 2: Convert to fraction form
    479,012.48/718,782 = 179,699.84/x
  3. Step 3: Cross multiply
    479,012.48x = 718,782 × 179,699.84
  4. Step 4: Simplify right side
    479,012.48x = 129,165,010,394.88
  5. Step 5: Solve for x
    x = 129,165,010,394.88/479,012.48
  6. Step 6: Final answer
    x = 269,648.53

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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.