Home / 646,350.96-969,969.24-225,626.76

Finding the Fourth Proportional to 646,350.96, 969,969.24 and 225,626.76

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Solution

The fourth proportional to 646,350.96, 969,969.24 and 225,626.76 is: 338,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,350.96 : 969,969.24 = 225,626.76 : x
  2. Step 2: Convert to fraction form
    646,350.96/969,969.24 = 225,626.76/x
  3. Step 3: Cross multiply
    646,350.96x = 969,969.24 × 225,626.76
  4. Step 4: Simplify right side
    646,350.96x = 218,851,016,920.86
  5. Step 5: Solve for x
    x = 218,851,016,920.86/646,350.96
  6. Step 6: Final answer
    x = 338,594.71

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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.