Home / 861,857.03-1,291,887.48-482,221.16

Finding the Fourth Proportional to 861,857.03, 1,291,887.48 and 482,221.16

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Solution

The fourth proportional to 861,857.03, 1,291,887.48 and 482,221.16 is: 722,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,857.03 : 1,291,887.48 = 482,221.16 : x
  2. Step 2: Convert to fraction form
    861,857.03/1,291,887.48 = 482,221.16/x
  3. Step 3: Cross multiply
    861,857.03x = 1,291,887.48 × 482,221.16
  4. Step 4: Simplify right side
    861,857.03x = 622,975,483,942.92
  5. Step 5: Solve for x
    x = 622,975,483,942.92/861,857.03
  6. Step 6: Final answer
    x = 722,829.27

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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.