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Finding the Fourth Proportional to 479,358.10, 718,984.05 and 171,597.84

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Solution

The fourth proportional to 479,358.10, 718,984.05 and 171,597.84 is: 257,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,358.10 : 718,984.05 = 171,597.84 : x
  2. Step 2: Convert to fraction form
    479,358.10/718,984.05 = 171,597.84/x
  3. Step 3: Cross multiply
    479,358.10x = 718,984.05 × 171,597.84
  4. Step 4: Simplify right side
    479,358.10x = 123,376,109,974.45
  5. Step 5: Solve for x
    x = 123,376,109,974.45/479,358.10
  6. Step 6: Final answer
    x = 257,377.75

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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.