Home / 378,861.06-568,385.55-112,621.08

Finding the Fourth Proportional to 378,861.06, 568,385.55 and 112,621.08

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Solution

The fourth proportional to 378,861.06, 568,385.55 and 112,621.08 is: 168,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,861.06 : 568,385.55 = 112,621.08 : x
  2. Step 2: Convert to fraction form
    378,861.06/568,385.55 = 112,621.08/x
  3. Step 3: Cross multiply
    378,861.06x = 568,385.55 × 112,621.08
  4. Step 4: Simplify right side
    378,861.06x = 64,012,194,497.39
  5. Step 5: Solve for x
    x = 64,012,194,497.39/378,861.06
  6. Step 6: Final answer
    x = 168,959.55

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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.