Home / 809,418.78-1,214,131.85-210,337.52

Finding the Fourth Proportional to 809,418.78, 1,214,131.85 and 210,337.52

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Solution

The fourth proportional to 809,418.78, 1,214,131.85 and 210,337.52 is: 315,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,418.78 : 1,214,131.85 = 210,337.52 : x
  2. Step 2: Convert to fraction form
    809,418.78/1,214,131.85 = 210,337.52/x
  3. Step 3: Cross multiply
    809,418.78x = 1,214,131.85 × 210,337.52
  4. Step 4: Simplify right side
    809,418.78x = 255,377,475,159.67
  5. Step 5: Solve for x
    x = 255,377,475,159.67/809,418.78
  6. Step 6: Final answer
    x = 315,507.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.