Home / 840,634.80-1,260,952.20-279,669.30

Finding the Fourth Proportional to 840,634.80, 1,260,952.20 and 279,669.30

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Solution

The fourth proportional to 840,634.80, 1,260,952.20 and 279,669.30 is: 419,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,634.80 : 1,260,952.20 = 279,669.30 : x
  2. Step 2: Convert to fraction form
    840,634.80/1,260,952.20 = 279,669.30/x
  3. Step 3: Cross multiply
    840,634.80x = 1,260,952.20 × 279,669.30
  4. Step 4: Simplify right side
    840,634.80x = 352,649,619,107.46
  5. Step 5: Solve for x
    x = 352,649,619,107.46/840,634.80
  6. Step 6: Final answer
    x = 419,503.95

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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.