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Finding the Fourth Proportional to 518,872.80, 776,902.23 and 269,029.92

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Solution

The fourth proportional to 518,872.80, 776,902.23 and 269,029.92 is: 402,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,872.80 : 776,902.23 = 269,029.92 : x
  2. Step 2: Convert to fraction form
    518,872.80/776,902.23 = 269,029.92/x
  3. Step 3: Cross multiply
    518,872.80x = 776,902.23 × 269,029.92
  4. Step 4: Simplify right side
    518,872.80x = 209,009,944,784.72
  5. Step 5: Solve for x
    x = 209,009,944,784.72/518,872.80
  6. Step 6: Final answer
    x = 402,815.38

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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.