Home / 387,169.20-580,753.80-307,453.05

Finding the Fourth Proportional to 387,169.20, 580,753.80 and 307,453.05

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Solution

The fourth proportional to 387,169.20, 580,753.80 and 307,453.05 is: 461,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,169.20 : 580,753.80 = 307,453.05 : x
  2. Step 2: Convert to fraction form
    387,169.20/580,753.80 = 307,453.05/x
  3. Step 3: Cross multiply
    387,169.20x = 580,753.80 × 307,453.05
  4. Step 4: Simplify right side
    387,169.20x = 178,554,527,109.09
  5. Step 5: Solve for x
    x = 178,554,527,109.09/387,169.20
  6. Step 6: Final answer
    x = 461,179.58

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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.