Home / 1,285,376.96-1,928,335.18-386,884.46

Finding the Fourth Proportional to 1,285,376.96, 1,928,335.18 and 386,884.46

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Solution

The fourth proportional to 1,285,376.96, 1,928,335.18 and 386,884.46 is: 580,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,376.96 : 1,928,335.18 = 386,884.46 : x
  2. Step 2: Convert to fraction form
    1,285,376.96/1,928,335.18 = 386,884.46/x
  3. Step 3: Cross multiply
    1,285,376.96x = 1,928,335.18 × 386,884.46
  4. Step 4: Simplify right side
    1,285,376.96x = 746,042,914,813.30
  5. Step 5: Solve for x
    x = 746,042,914,813.30/1,285,376.96
  6. Step 6: Final answer
    x = 580,407.88

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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.