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Finding the Fourth Proportional to 579,872.04, 869,458.51 and 259,966

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Solution

The fourth proportional to 579,872.04, 869,458.51 and 259,966 is: 389,792.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,872.04 : 869,458.51 = 259,966 : x
  2. Step 2: Convert to fraction form
    579,872.04/869,458.51 = 259,966/x
  3. Step 3: Cross multiply
    579,872.04x = 869,458.51 × 259,966
  4. Step 4: Simplify right side
    579,872.04x = 226,029,651,010.66
  5. Step 5: Solve for x
    x = 226,029,651,010.66/579,872.04
  6. Step 6: Final answer
    x = 389,792.29

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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.