Home / 404,835.87-606,589.14-138,451.05

Finding the Fourth Proportional to 404,835.87, 606,589.14 and 138,451.05

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Solution

The fourth proportional to 404,835.87, 606,589.14 and 138,451.05 is: 207,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,835.87 : 606,589.14 = 138,451.05 : x
  2. Step 2: Convert to fraction form
    404,835.87/606,589.14 = 138,451.05/x
  3. Step 3: Cross multiply
    404,835.87x = 606,589.14 × 138,451.05
  4. Step 4: Simplify right side
    404,835.87x = 83,982,903,351.60
  5. Step 5: Solve for x
    x = 83,982,903,351.60/404,835.87
  6. Step 6: Final answer
    x = 207,449.26

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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.