Home / 861,270.40-1,291,954.20-262,251.10

Finding the Fourth Proportional to 861,270.40, 1,291,954.20 and 262,251.10

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Solution

The fourth proportional to 861,270.40, 1,291,954.20 and 262,251.10 is: 393,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,270.40 : 1,291,954.20 = 262,251.10 : x
  2. Step 2: Convert to fraction form
    861,270.40/1,291,954.20 = 262,251.10/x
  3. Step 3: Cross multiply
    861,270.40x = 1,291,954.20 × 262,251.10
  4. Step 4: Simplify right side
    861,270.40x = 338,816,410,099.62
  5. Step 5: Solve for x
    x = 338,816,410,099.62/861,270.40
  6. Step 6: Final answer
    x = 393,391.45

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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.