Home / 828,102.46-1,242,212.77-220,887.38

Finding the Fourth Proportional to 828,102.46, 1,242,212.77 and 220,887.38

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Solution

The fourth proportional to 828,102.46, 1,242,212.77 and 220,887.38 is: 331,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,102.46 : 1,242,212.77 = 220,887.38 : x
  2. Step 2: Convert to fraction form
    828,102.46/1,242,212.77 = 220,887.38/x
  3. Step 3: Cross multiply
    828,102.46x = 1,242,212.77 × 220,887.38
  4. Step 4: Simplify right side
    828,102.46x = 274,389,124,167.84
  5. Step 5: Solve for x
    x = 274,389,124,167.84/828,102.46
  6. Step 6: Final answer
    x = 331,346.83

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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.