Home / 414,290.78-621,436.22-130,025.18

Finding the Fourth Proportional to 414,290.78, 621,436.22 and 130,025.18

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Solution

The fourth proportional to 414,290.78, 621,436.22 and 130,025.18 is: 195,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,290.78 : 621,436.22 = 130,025.18 : x
  2. Step 2: Convert to fraction form
    414,290.78/621,436.22 = 130,025.18/x
  3. Step 3: Cross multiply
    414,290.78x = 621,436.22 × 130,025.18
  4. Step 4: Simplify right side
    414,290.78x = 80,802,356,364.02
  5. Step 5: Solve for x
    x = 80,802,356,364.02/414,290.78
  6. Step 6: Final answer
    x = 195,037.79

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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.