Home / 857,860.38-1,286,988.26-296,894.88

Finding the Fourth Proportional to 857,860.38, 1,286,988.26 and 296,894.88

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Solution

The fourth proportional to 857,860.38, 1,286,988.26 and 296,894.88 is: 445,410.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,860.38 : 1,286,988.26 = 296,894.88 : x
  2. Step 2: Convert to fraction form
    857,860.38/1,286,988.26 = 296,894.88/x
  3. Step 3: Cross multiply
    857,860.38x = 1,286,988.26 × 296,894.88
  4. Step 4: Simplify right side
    857,860.38x = 382,100,223,529.63
  5. Step 5: Solve for x
    x = 382,100,223,529.63/857,860.38
  6. Step 6: Final answer
    x = 445,410.74

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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.