Home / 827,208.10-1,240,664.55-219,999.88

Finding the Fourth Proportional to 827,208.10, 1,240,664.55 and 219,999.88

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Solution

The fourth proportional to 827,208.10, 1,240,664.55 and 219,999.88 is: 329,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,208.10 : 1,240,664.55 = 219,999.88 : x
  2. Step 2: Convert to fraction form
    827,208.10/1,240,664.55 = 219,999.88/x
  3. Step 3: Cross multiply
    827,208.10x = 1,240,664.55 × 219,999.88
  4. Step 4: Simplify right side
    827,208.10x = 272,946,052,120.25
  5. Step 5: Solve for x
    x = 272,946,052,120.25/827,208.10
  6. Step 6: Final answer
    x = 329,960.57

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1.5x scale

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.