Home / 628,286.88-867,016.16-341,799.68

Finding the Fourth Proportional to 628,286.88, 867,016.16 and 341,799.68

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Solution

The fourth proportional to 628,286.88, 867,016.16 and 341,799.68 is: 471,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,286.88 : 867,016.16 = 341,799.68 : x
  2. Step 2: Convert to fraction form
    628,286.88/867,016.16 = 341,799.68/x
  3. Step 3: Cross multiply
    628,286.88x = 867,016.16 × 341,799.68
  4. Step 4: Simplify right side
    628,286.88x = 296,345,846,042.83
  5. Step 5: Solve for x
    x = 296,345,846,042.83/628,286.88
  6. Step 6: Final answer
    x = 471,672.82

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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.