Home / 398,976.80-597,979.20-173,861.60

Finding the Fourth Proportional to 398,976.80, 597,979.20 and 173,861.60

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Solution

The fourth proportional to 398,976.80, 597,979.20 and 173,861.60 is: 260,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,976.80 : 597,979.20 = 173,861.60 : x
  2. Step 2: Convert to fraction form
    398,976.80/597,979.20 = 173,861.60/x
  3. Step 3: Cross multiply
    398,976.80x = 597,979.20 × 173,861.60
  4. Step 4: Simplify right side
    398,976.80x = 103,965,620,478.72
  5. Step 5: Solve for x
    x = 103,965,620,478.72/398,976.80
  6. Step 6: Final answer
    x = 260,580.62

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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.