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Finding the Fourth Proportional to 805,889.84, 1,208,418.56 and 237,196.88

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Solution

The fourth proportional to 805,889.84, 1,208,418.56 and 237,196.88 is: 355,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,889.84 : 1,208,418.56 = 237,196.88 : x
  2. Step 2: Convert to fraction form
    805,889.84/1,208,418.56 = 237,196.88/x
  3. Step 3: Cross multiply
    805,889.84x = 1,208,418.56 × 237,196.88
  4. Step 4: Simplify right side
    805,889.84x = 286,633,112,166.09
  5. Step 5: Solve for x
    x = 286,633,112,166.09/805,889.84
  6. Step 6: Final answer
    x = 355,672.82

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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.