Home / 410,621.25-615,933.41-126,309.90

Finding the Fourth Proportional to 410,621.25, 615,933.41 and 126,309.90

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Solution

The fourth proportional to 410,621.25, 615,933.41 and 126,309.90 is: 189,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,621.25 : 615,933.41 = 126,309.90 : x
  2. Step 2: Convert to fraction form
    410,621.25/615,933.41 = 126,309.90/x
  3. Step 3: Cross multiply
    410,621.25x = 615,933.41 × 126,309.90
  4. Step 4: Simplify right side
    410,621.25x = 77,798,486,792.21
  5. Step 5: Solve for x
    x = 77,798,486,792.21/410,621.25
  6. Step 6: Final answer
    x = 189,465.32

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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.