Home / 820,607.40-1,230,787.98-259,569

Finding the Fourth Proportional to 820,607.40, 1,230,787.98 and 259,569

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Solution

The fourth proportional to 820,607.40, 1,230,787.98 and 259,569 is: 389,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,607.40 : 1,230,787.98 = 259,569 : x
  2. Step 2: Convert to fraction form
    820,607.40/1,230,787.98 = 259,569/x
  3. Step 3: Cross multiply
    820,607.40x = 1,230,787.98 × 259,569
  4. Step 4: Simplify right side
    820,607.40x = 319,474,405,180.62
  5. Step 5: Solve for x
    x = 319,474,405,180.62/820,607.40
  6. Step 6: Final answer
    x = 389,314.56

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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.