Home / 878,979.20-1,318,468.80-214,131.20

Finding the Fourth Proportional to 878,979.20, 1,318,468.80 and 214,131.20

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Solution

The fourth proportional to 878,979.20, 1,318,468.80 and 214,131.20 is: 321,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,979.20 : 1,318,468.80 = 214,131.20 : x
  2. Step 2: Convert to fraction form
    878,979.20/1,318,468.80 = 214,131.20/x
  3. Step 3: Cross multiply
    878,979.20x = 1,318,468.80 × 214,131.20
  4. Step 4: Simplify right side
    878,979.20x = 282,325,306,306.56
  5. Step 5: Solve for x
    x = 282,325,306,306.56/878,979.20
  6. Step 6: Final answer
    x = 321,196.80

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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.