Home / 839,952.45-1,259,928.68-278,986.95

Finding the Fourth Proportional to 839,952.45, 1,259,928.68 and 278,986.95

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Solution

The fourth proportional to 839,952.45, 1,259,928.68 and 278,986.95 is: 418,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,952.45 : 1,259,928.68 = 278,986.95 : x
  2. Step 2: Convert to fraction form
    839,952.45/1,259,928.68 = 278,986.95/x
  3. Step 3: Cross multiply
    839,952.45x = 1,259,928.68 × 278,986.95
  4. Step 4: Simplify right side
    839,952.45x = 351,503,658,255.79
  5. Step 5: Solve for x
    x = 351,503,658,255.79/839,952.45
  6. Step 6: Final answer
    x = 418,480.43

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1.5x scale

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.