Home / 818,610.22-1,228,111.96-313,162.93

Finding the Fourth Proportional to 818,610.22, 1,228,111.96 and 313,162.93

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Solution

The fourth proportional to 818,610.22, 1,228,111.96 and 313,162.93 is: 469,819.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,610.22 : 1,228,111.96 = 313,162.93 : x
  2. Step 2: Convert to fraction form
    818,610.22/1,228,111.96 = 313,162.93/x
  3. Step 3: Cross multiply
    818,610.22x = 1,228,111.96 × 313,162.93
  4. Step 4: Simplify right side
    818,610.22x = 384,599,138,195.83
  5. Step 5: Solve for x
    x = 384,599,138,195.83/818,610.22
  6. Step 6: Final answer
    x = 469,819.61

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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.