Home / 722,724.31-1,083,863.72-499,519.09

Finding the Fourth Proportional to 722,724.31, 1,083,863.72 and 499,519.09

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Solution

The fourth proportional to 722,724.31, 1,083,863.72 and 499,519.09 is: 749,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,724.31 : 1,083,863.72 = 499,519.09 : x
  2. Step 2: Convert to fraction form
    722,724.31/1,083,863.72 = 499,519.09/x
  3. Step 3: Cross multiply
    722,724.31x = 1,083,863.72 × 499,519.09
  4. Step 4: Simplify right side
    722,724.31x = 541,410,616,600.82
  5. Step 5: Solve for x
    x = 541,410,616,600.82/722,724.31
  6. Step 6: Final answer
    x = 749,124.68

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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.