Home / 491,195.12-677,821.56-276,344.24

Finding the Fourth Proportional to 491,195.12, 677,821.56 and 276,344.24

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Solution

The fourth proportional to 491,195.12, 677,821.56 and 276,344.24 is: 381,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,195.12 : 677,821.56 = 276,344.24 : x
  2. Step 2: Convert to fraction form
    491,195.12/677,821.56 = 276,344.24/x
  3. Step 3: Cross multiply
    491,195.12x = 677,821.56 × 276,344.24
  4. Step 4: Simplify right side
    491,195.12x = 187,312,083,853.81
  5. Step 5: Solve for x
    x = 187,312,083,853.81/491,195.12
  6. Step 6: Final answer
    x = 381,339.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.