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Finding the Fourth Proportional to 408,581.92, 612,870.88 and 104,975.84

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Solution

The fourth proportional to 408,581.92, 612,870.88 and 104,975.84 is: 157,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,581.92 : 612,870.88 = 104,975.84 : x
  2. Step 2: Convert to fraction form
    408,581.92/612,870.88 = 104,975.84/x
  3. Step 3: Cross multiply
    408,581.92x = 612,870.88 × 104,975.84
  4. Step 4: Simplify right side
    408,581.92x = 64,336,635,439.54
  5. Step 5: Solve for x
    x = 64,336,635,439.54/408,581.92
  6. Step 6: Final answer
    x = 157,463.25

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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.