Home / 426,484.19-639,947.68-173,949.95

Finding the Fourth Proportional to 426,484.19, 639,947.68 and 173,949.95

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Solution

The fourth proportional to 426,484.19, 639,947.68 and 173,949.95 is: 261,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,484.19 : 639,947.68 = 173,949.95 : x
  2. Step 2: Convert to fraction form
    426,484.19/639,947.68 = 173,949.95/x
  3. Step 3: Cross multiply
    426,484.19x = 639,947.68 × 173,949.95
  4. Step 4: Simplify right side
    426,484.19x = 111,318,863,304.00
  5. Step 5: Solve for x
    x = 111,318,863,304.00/426,484.19
  6. Step 6: Final answer
    x = 261,015.22

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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.