Home / 863,042.80-1,294,564.20-726,185.20

Finding the Fourth Proportional to 863,042.80, 1,294,564.20 and 726,185.20

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Solution

The fourth proportional to 863,042.80, 1,294,564.20 and 726,185.20 is: 1,089,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,042.80 : 1,294,564.20 = 726,185.20 : x
  2. Step 2: Convert to fraction form
    863,042.80/1,294,564.20 = 726,185.20/x
  3. Step 3: Cross multiply
    863,042.80x = 1,294,564.20 × 726,185.20
  4. Step 4: Simplify right side
    863,042.80x = 940,093,362,489.84
  5. Step 5: Solve for x
    x = 940,093,362,489.84/863,042.80
  6. Step 6: Final answer
    x = 1,089,277.80

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Double scale
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Similar ratio
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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.