Home / 839,716.80-1,259,575.20-278,751.30

Finding the Fourth Proportional to 839,716.80, 1,259,575.20 and 278,751.30

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Solution

The fourth proportional to 839,716.80, 1,259,575.20 and 278,751.30 is: 418,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,716.80 : 1,259,575.20 = 278,751.30 : x
  2. Step 2: Convert to fraction form
    839,716.80/1,259,575.20 = 278,751.30/x
  3. Step 3: Cross multiply
    839,716.80x = 1,259,575.20 × 278,751.30
  4. Step 4: Simplify right side
    839,716.80x = 351,108,224,447.76
  5. Step 5: Solve for x
    x = 351,108,224,447.76/839,716.80
  6. Step 6: Final answer
    x = 418,126.95

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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.