Home / 763,912.62-1,145,839.77-258,511.50

Finding the Fourth Proportional to 763,912.62, 1,145,839.77 and 258,511.50

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Solution

The fourth proportional to 763,912.62, 1,145,839.77 and 258,511.50 is: 387,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,912.62 : 1,145,839.77 = 258,511.50 : x
  2. Step 2: Convert to fraction form
    763,912.62/1,145,839.77 = 258,511.50/x
  3. Step 3: Cross multiply
    763,912.62x = 1,145,839.77 × 258,511.50
  4. Step 4: Simplify right side
    763,912.62x = 296,212,757,702.36
  5. Step 5: Solve for x
    x = 296,212,757,702.36/763,912.62
  6. Step 6: Final answer
    x = 387,757.38

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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.