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Finding the Fourth Proportional to 479,400.35, 718,913.67 and 179,717.45

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Solution

The fourth proportional to 479,400.35, 718,913.67 and 179,717.45 is: 269,506.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,400.35 : 718,913.67 = 179,717.45 : x
  2. Step 2: Convert to fraction form
    479,400.35/718,913.67 = 179,717.45/x
  3. Step 3: Cross multiply
    479,400.35x = 718,913.67 × 179,717.45
  4. Step 4: Simplify right side
    479,400.35x = 129,201,327,947.97
  5. Step 5: Solve for x
    x = 129,201,327,947.97/479,400.35
  6. Step 6: Final answer
    x = 269,506.12

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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.