Home / 414,149.18-620,589.60-278,711.24

Finding the Fourth Proportional to 414,149.18, 620,589.60 and 278,711.24

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Solution

The fourth proportional to 414,149.18, 620,589.60 and 278,711.24 is: 417,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,149.18 : 620,589.60 = 278,711.24 : x
  2. Step 2: Convert to fraction form
    414,149.18/620,589.60 = 278,711.24/x
  3. Step 3: Cross multiply
    414,149.18x = 620,589.60 × 278,711.24
  4. Step 4: Simplify right side
    414,149.18x = 172,965,293,844.16
  5. Step 5: Solve for x
    x = 172,965,293,844.16/414,149.18
  6. Step 6: Final answer
    x = 417,640.08

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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.