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Finding the Fourth Proportional to 518,578.08, 777,801.51 and 203,256.42

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Solution

The fourth proportional to 518,578.08, 777,801.51 and 203,256.42 is: 304,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,578.08 : 777,801.51 = 203,256.42 : x
  2. Step 2: Convert to fraction form
    518,578.08/777,801.51 = 203,256.42/x
  3. Step 3: Cross multiply
    518,578.08x = 777,801.51 × 203,256.42
  4. Step 4: Simplify right side
    518,578.08x = 158,093,150,393.19
  5. Step 5: Solve for x
    x = 158,093,150,393.19/518,578.08
  6. Step 6: Final answer
    x = 304,858.91

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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.