Home / 674,872.14-1,012,563.89-405,188.61

Finding the Fourth Proportional to 674,872.14, 1,012,563.89 and 405,188.61

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Solution

The fourth proportional to 674,872.14, 1,012,563.89 and 405,188.61 is: 607,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,872.14 : 1,012,563.89 = 405,188.61 : x
  2. Step 2: Convert to fraction form
    674,872.14/1,012,563.89 = 405,188.61/x
  3. Step 3: Cross multiply
    674,872.14x = 1,012,563.89 × 405,188.61
  4. Step 4: Simplify right side
    674,872.14x = 410,279,356,517.36
  5. Step 5: Solve for x
    x = 410,279,356,517.36/674,872.14
  6. Step 6: Final answer
    x = 607,936.43

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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.