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Finding the Fourth Proportional to 808,422.22, 1,212,889.22 and 239,805.53

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Solution

The fourth proportional to 808,422.22, 1,212,889.22 and 239,805.53 is: 359,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,422.22 : 1,212,889.22 = 239,805.53 : x
  2. Step 2: Convert to fraction form
    808,422.22/1,212,889.22 = 239,805.53/x
  3. Step 3: Cross multiply
    808,422.22x = 1,212,889.22 × 239,805.53
  4. Step 4: Simplify right side
    808,422.22x = 290,857,534,969.91
  5. Step 5: Solve for x
    x = 290,857,534,969.91/808,422.22
  6. Step 6: Final answer
    x = 359,784.19

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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.