Home / 813,494.48-1,219,859.25-300,805.39

Finding the Fourth Proportional to 813,494.48, 1,219,859.25 and 300,805.39

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Solution

The fourth proportional to 813,494.48, 1,219,859.25 and 300,805.39 is: 451,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,494.48 : 1,219,859.25 = 300,805.39 : x
  2. Step 2: Convert to fraction form
    813,494.48/1,219,859.25 = 300,805.39/x
  3. Step 3: Cross multiply
    813,494.48x = 1,219,859.25 × 300,805.39
  4. Step 4: Simplify right side
    813,494.48x = 366,940,229,838.03
  5. Step 5: Solve for x
    x = 366,940,229,838.03/813,494.48
  6. Step 6: Final answer
    x = 451,066.65

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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.