Home / 861,296.39-1,291,944.59-262,257.54

Finding the Fourth Proportional to 861,296.39, 1,291,944.59 and 262,257.54

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Solution

The fourth proportional to 861,296.39, 1,291,944.59 and 262,257.54 is: 393,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,296.39 : 1,291,944.59 = 262,257.54 : x
  2. Step 2: Convert to fraction form
    861,296.39/1,291,944.59 = 262,257.54/x
  3. Step 3: Cross multiply
    861,296.39x = 1,291,944.59 × 262,257.54
  4. Step 4: Simplify right side
    861,296.39x = 338,822,215,717.88
  5. Step 5: Solve for x
    x = 338,822,215,717.88/861,296.39
  6. Step 6: Final answer
    x = 393,386.32

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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.