Home / 861,202.26-1,291,990.20-262,147.83

Finding the Fourth Proportional to 861,202.26, 1,291,990.20 and 262,147.83

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Solution

The fourth proportional to 861,202.26, 1,291,990.20 and 262,147.83 is: 393,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,202.26 : 1,291,990.20 = 262,147.83 : x
  2. Step 2: Convert to fraction form
    861,202.26/1,291,990.20 = 262,147.83/x
  3. Step 3: Cross multiply
    861,202.26x = 1,291,990.20 × 262,147.83
  4. Step 4: Simplify right side
    861,202.26x = 338,692,421,483.25
  5. Step 5: Solve for x
    x = 338,692,421,483.25/861,202.26
  6. Step 6: Final answer
    x = 393,278.60

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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.