Home / 646,832.54-969,176.20-393,346.25

Finding the Fourth Proportional to 646,832.54, 969,176.20 and 393,346.25

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Solution

The fourth proportional to 646,832.54, 969,176.20 and 393,346.25 is: 589,367.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,832.54 : 969,176.20 = 393,346.25 : x
  2. Step 2: Convert to fraction form
    646,832.54/969,176.20 = 393,346.25/x
  3. Step 3: Cross multiply
    646,832.54x = 969,176.20 × 393,346.25
  4. Step 4: Simplify right side
    646,832.54x = 381,221,826,773.87
  5. Step 5: Solve for x
    x = 381,221,826,773.87/646,832.54
  6. Step 6: Final answer
    x = 589,367.11

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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.