Home / 861,271.20-1,291,906.80-262,227.60

Finding the Fourth Proportional to 861,271.20, 1,291,906.80 and 262,227.60

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Solution

The fourth proportional to 861,271.20, 1,291,906.80 and 262,227.60 is: 393,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,271.20 : 1,291,906.80 = 262,227.60 : x
  2. Step 2: Convert to fraction form
    861,271.20/1,291,906.80 = 262,227.60/x
  3. Step 3: Cross multiply
    861,271.20x = 1,291,906.80 × 262,227.60
  4. Step 4: Simplify right side
    861,271.20x = 338,773,619,587.68
  5. Step 5: Solve for x
    x = 338,773,619,587.68/861,271.20
  6. Step 6: Final answer
    x = 393,341.40

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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.