Home / 861,208.29-1,291,999.13-262,153.79

Finding the Fourth Proportional to 861,208.29, 1,291,999.13 and 262,153.79

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Solution

The fourth proportional to 861,208.29, 1,291,999.13 and 262,153.79 is: 393,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,208.29 : 1,291,999.13 = 262,153.79 : x
  2. Step 2: Convert to fraction form
    861,208.29/1,291,999.13 = 262,153.79/x
  3. Step 3: Cross multiply
    861,208.29x = 1,291,999.13 × 262,153.79
  4. Step 4: Simplify right side
    861,208.29x = 338,702,460,835.44
  5. Step 5: Solve for x
    x = 338,702,460,835.44/861,208.29
  6. Step 6: Final answer
    x = 393,287.51

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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.