Home / 878,727.62-1,318,091.52-317,630.90

Finding the Fourth Proportional to 878,727.62, 1,318,091.52 and 317,630.90

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Solution

The fourth proportional to 878,727.62, 1,318,091.52 and 317,630.90 is: 476,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,727.62 : 1,318,091.52 = 317,630.90 : x
  2. Step 2: Convert to fraction form
    878,727.62/1,318,091.52 = 317,630.90/x
  3. Step 3: Cross multiply
    878,727.62x = 1,318,091.52 × 317,630.90
  4. Step 4: Simplify right side
    878,727.62x = 418,666,595,779.97
  5. Step 5: Solve for x
    x = 418,666,595,779.97/878,727.62
  6. Step 6: Final answer
    x = 476,446.38

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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.