Home / 685,734.18-1,028,668.92-236,395.86

Finding the Fourth Proportional to 685,734.18, 1,028,668.92 and 236,395.86

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Solution

The fourth proportional to 685,734.18, 1,028,668.92 and 236,395.86 is: 354,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,734.18 : 1,028,668.92 = 236,395.86 : x
  2. Step 2: Convert to fraction form
    685,734.18/1,028,668.92 = 236,395.86/x
  3. Step 3: Cross multiply
    685,734.18x = 1,028,668.92 × 236,395.86
  4. Step 4: Simplify right side
    685,734.18x = 243,173,073,998.67
  5. Step 5: Solve for x
    x = 243,173,073,998.67/685,734.18
  6. Step 6: Final answer
    x = 354,617.11

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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.