Home / 398,974.80-597,976.20-173,859.60

Finding the Fourth Proportional to 398,974.80, 597,976.20 and 173,859.60

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Solution

The fourth proportional to 398,974.80, 597,976.20 and 173,859.60 is: 260,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,974.80 : 597,976.20 = 173,859.60 : x
  2. Step 2: Convert to fraction form
    398,974.80/597,976.20 = 173,859.60/x
  3. Step 3: Cross multiply
    398,974.80x = 597,976.20 × 173,859.60
  4. Step 4: Simplify right side
    398,974.80x = 103,963,902,941.52
  5. Step 5: Solve for x
    x = 103,963,902,941.52/398,974.80
  6. Step 6: Final answer
    x = 260,577.62

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1.5x scale

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.