Home / 861,296.89-1,291,945.34-262,258.05

Finding the Fourth Proportional to 861,296.89, 1,291,945.34 and 262,258.05

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Solution

The fourth proportional to 861,296.89, 1,291,945.34 and 262,258.05 is: 393,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,296.89 : 1,291,945.34 = 262,258.05 : x
  2. Step 2: Convert to fraction form
    861,296.89/1,291,945.34 = 262,258.05/x
  3. Step 3: Cross multiply
    861,296.89x = 1,291,945.34 × 262,258.05
  4. Step 4: Simplify right side
    861,296.89x = 338,823,059,115.26
  5. Step 5: Solve for x
    x = 338,823,059,115.26/861,296.89
  6. Step 6: Final answer
    x = 393,387.07

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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.