Home / 672,120.95-1,008,181.42-198,769.43

Finding the Fourth Proportional to 672,120.95, 1,008,181.42 and 198,769.43

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Solution

The fourth proportional to 672,120.95, 1,008,181.42 and 198,769.43 is: 298,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,120.95 : 1,008,181.42 = 198,769.43 : x
  2. Step 2: Convert to fraction form
    672,120.95/1,008,181.42 = 198,769.43/x
  3. Step 3: Cross multiply
    672,120.95x = 1,008,181.42 × 198,769.43
  4. Step 4: Simplify right side
    672,120.95x = 200,395,648,213.52
  5. Step 5: Solve for x
    x = 200,395,648,213.52/672,120.95
  6. Step 6: Final answer
    x = 298,154.15

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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.