Home / 681,469.80-1,022,204.70-415,749.30

Finding the Fourth Proportional to 681,469.80, 1,022,204.70 and 415,749.30

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Solution

The fourth proportional to 681,469.80, 1,022,204.70 and 415,749.30 is: 623,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,469.80 : 1,022,204.70 = 415,749.30 : x
  2. Step 2: Convert to fraction form
    681,469.80/1,022,204.70 = 415,749.30/x
  3. Step 3: Cross multiply
    681,469.80x = 1,022,204.70 × 415,749.30
  4. Step 4: Simplify right side
    681,469.80x = 424,980,888,481.71
  5. Step 5: Solve for x
    x = 424,980,888,481.71/681,469.80
  6. Step 6: Final answer
    x = 623,623.95

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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.