Home / 1,229,212.02-1,696,188.96-685,297.02

Finding the Fourth Proportional to 1,229,212.02, 1,696,188.96 and 685,297.02

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Solution

The fourth proportional to 1,229,212.02, 1,696,188.96 and 685,297.02 is: 945,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,212.02 : 1,696,188.96 = 685,297.02 : x
  2. Step 2: Convert to fraction form
    1,229,212.02/1,696,188.96 = 685,297.02/x
  3. Step 3: Cross multiply
    1,229,212.02x = 1,696,188.96 × 685,297.02
  4. Step 4: Simplify right side
    1,229,212.02x = 1,162,393,239,644.90
  5. Step 5: Solve for x
    x = 1,162,393,239,644.90/1,229,212.02
  6. Step 6: Final answer
    x = 945,640.96

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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.