Home / 878,008.75-1,317,240.38-270,783.65

Finding the Fourth Proportional to 878,008.75, 1,317,240.38 and 270,783.65

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Solution

The fourth proportional to 878,008.75, 1,317,240.38 and 270,783.65 is: 406,245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,008.75 : 1,317,240.38 = 270,783.65 : x
  2. Step 2: Convert to fraction form
    878,008.75/1,317,240.38 = 270,783.65/x
  3. Step 3: Cross multiply
    878,008.75x = 1,317,240.38 × 270,783.65
  4. Step 4: Simplify right side
    878,008.75x = 356,687,158,023.79
  5. Step 5: Solve for x
    x = 356,687,158,023.79/878,008.75
  6. Step 6: Final answer
    x = 406,245.56

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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.