Home / 542,942.39-749,325.13-313,555.46

Finding the Fourth Proportional to 542,942.39, 749,325.13 and 313,555.46

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Solution

The fourth proportional to 542,942.39, 749,325.13 and 313,555.46 is: 432,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,942.39 : 749,325.13 = 313,555.46 : x
  2. Step 2: Convert to fraction form
    542,942.39/749,325.13 = 313,555.46/x
  3. Step 3: Cross multiply
    542,942.39x = 749,325.13 × 313,555.46
  4. Step 4: Simplify right side
    542,942.39x = 234,954,981,296.20
  5. Step 5: Solve for x
    x = 234,954,981,296.20/542,942.39
  6. Step 6: Final answer
    x = 432,743.85

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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.