Home / 399,300.22-598,979.04-125,722.90

Finding the Fourth Proportional to 399,300.22, 598,979.04 and 125,722.90

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Solution

The fourth proportional to 399,300.22, 598,979.04 and 125,722.90 is: 188,593.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,300.22 : 598,979.04 = 125,722.90 : x
  2. Step 2: Convert to fraction form
    399,300.22/598,979.04 = 125,722.90/x
  3. Step 3: Cross multiply
    399,300.22x = 598,979.04 × 125,722.90
  4. Step 4: Simplify right side
    399,300.22x = 75,305,381,948.02
  5. Step 5: Solve for x
    x = 75,305,381,948.02/399,300.22
  6. Step 6: Final answer
    x = 188,593.39

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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.