Home / 712,103.78-1,067,878.86-256,573.55

Finding the Fourth Proportional to 712,103.78, 1,067,878.86 and 256,573.55

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Solution

The fourth proportional to 712,103.78, 1,067,878.86 and 256,573.55 is: 384,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,103.78 : 1,067,878.86 = 256,573.55 : x
  2. Step 2: Convert to fraction form
    712,103.78/1,067,878.86 = 256,573.55/x
  3. Step 3: Cross multiply
    712,103.78x = 1,067,878.86 × 256,573.55
  4. Step 4: Simplify right side
    712,103.78x = 273,989,471,787.70
  5. Step 5: Solve for x
    x = 273,989,471,787.70/712,103.78
  6. Step 6: Final answer
    x = 384,760.59

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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.