Home / 780,380.73-1,170,908.87-275,302.80

Finding the Fourth Proportional to 780,380.73, 1,170,908.87 and 275,302.80

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Solution

The fourth proportional to 780,380.73, 1,170,908.87 and 275,302.80 is: 413,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,380.73 : 1,170,908.87 = 275,302.80 : x
  2. Step 2: Convert to fraction form
    780,380.73/1,170,908.87 = 275,302.80/x
  3. Step 3: Cross multiply
    780,380.73x = 1,170,908.87 × 275,302.80
  4. Step 4: Simplify right side
    780,380.73x = 322,354,489,079.32
  5. Step 5: Solve for x
    x = 322,354,489,079.32/780,380.73
  6. Step 6: Final answer
    x = 413,073.36

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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.