Home / 743,020.92-1,025,372.82-420,793.74

Finding the Fourth Proportional to 743,020.92, 1,025,372.82 and 420,793.74

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Solution

The fourth proportional to 743,020.92, 1,025,372.82 and 420,793.74 is: 580,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,020.92 : 1,025,372.82 = 420,793.74 : x
  2. Step 2: Convert to fraction form
    743,020.92/1,025,372.82 = 420,793.74/x
  3. Step 3: Cross multiply
    743,020.92x = 1,025,372.82 × 420,793.74
  4. Step 4: Simplify right side
    743,020.92x = 431,470,463,822.15
  5. Step 5: Solve for x
    x = 431,470,463,822.15/743,020.92
  6. Step 6: Final answer
    x = 580,697.60

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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.