Home / 743,151.57-1,025,514.83-420,863.97

Finding the Fourth Proportional to 743,151.57, 1,025,514.83 and 420,863.97

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Solution

The fourth proportional to 743,151.57, 1,025,514.83 and 420,863.97 is: 580,772.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,151.57 : 1,025,514.83 = 420,863.97 : x
  2. Step 2: Convert to fraction form
    743,151.57/1,025,514.83 = 420,863.97/x
  3. Step 3: Cross multiply
    743,151.57x = 1,025,514.83 × 420,863.97
  4. Step 4: Simplify right side
    743,151.57x = 431,602,242,647.68
  5. Step 5: Solve for x
    x = 431,602,242,647.68/743,151.57
  6. Step 6: Final answer
    x = 580,772.83

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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.