Home / 743,091.11-1,025,465.67-420,863.48

Finding the Fourth Proportional to 743,091.11, 1,025,465.67 and 420,863.48

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Solution

The fourth proportional to 743,091.11, 1,025,465.67 and 420,863.48 is: 580,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,091.11 : 1,025,465.67 = 420,863.48 : x
  2. Step 2: Convert to fraction form
    743,091.11/1,025,465.67 = 420,863.48/x
  3. Step 3: Cross multiply
    743,091.11x = 1,025,465.67 × 420,863.48
  4. Step 4: Simplify right side
    743,091.11x = 431,581,050,496.73
  5. Step 5: Solve for x
    x = 431,581,050,496.73/743,091.11
  6. Step 6: Final answer
    x = 580,791.57

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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.