Home / 862,147.20-1,293,220.62-263,111.52

Finding the Fourth Proportional to 862,147.20, 1,293,220.62 and 263,111.52

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Solution

The fourth proportional to 862,147.20, 1,293,220.62 and 263,111.52 is: 394,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,147.20 : 1,293,220.62 = 263,111.52 : x
  2. Step 2: Convert to fraction form
    862,147.20/1,293,220.62 = 263,111.52/x
  3. Step 3: Cross multiply
    862,147.20x = 1,293,220.62 × 263,111.52
  4. Step 4: Simplify right side
    862,147.20x = 340,261,243,023.54
  5. Step 5: Solve for x
    x = 340,261,243,023.54/862,147.20
  6. Step 6: Final answer
    x = 394,667.23

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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.