Home / 892,620.48-1,231,844.64-490,212.48

Finding the Fourth Proportional to 892,620.48, 1,231,844.64 and 490,212.48

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Solution

The fourth proportional to 892,620.48, 1,231,844.64 and 490,212.48 is: 676,508.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,620.48 : 1,231,844.64 = 490,212.48 : x
  2. Step 2: Convert to fraction form
    892,620.48/1,231,844.64 = 490,212.48/x
  3. Step 3: Cross multiply
    892,620.48x = 1,231,844.64 × 490,212.48
  4. Step 4: Simplify right side
    892,620.48x = 603,865,615,949.11
  5. Step 5: Solve for x
    x = 603,865,615,949.11/892,620.48
  6. Step 6: Final answer
    x = 676,508.81

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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.