Home / 878,705.52-1,318,160.68-318,004.08

Finding the Fourth Proportional to 878,705.52, 1,318,160.68 and 318,004.08

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Solution

The fourth proportional to 878,705.52, 1,318,160.68 and 318,004.08 is: 477,043.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,705.52 : 1,318,160.68 = 318,004.08 : x
  2. Step 2: Convert to fraction form
    878,705.52/1,318,160.68 = 318,004.08/x
  3. Step 3: Cross multiply
    878,705.52x = 1,318,160.68 × 318,004.08
  4. Step 4: Simplify right side
    878,705.52x = 419,180,474,335.57
  5. Step 5: Solve for x
    x = 419,180,474,335.57/878,705.52
  6. Step 6: Final answer
    x = 477,043.18

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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.