Home / 812,072.40-1,218,281.40-251,163.60

Finding the Fourth Proportional to 812,072.40, 1,218,281.40 and 251,163.60

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Solution

The fourth proportional to 812,072.40, 1,218,281.40 and 251,163.60 is: 376,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,072.40 : 1,218,281.40 = 251,163.60 : x
  2. Step 2: Convert to fraction form
    812,072.40/1,218,281.40 = 251,163.60/x
  3. Step 3: Cross multiply
    812,072.40x = 1,218,281.40 × 251,163.60
  4. Step 4: Simplify right side
    812,072.40x = 305,987,942,237.04
  5. Step 5: Solve for x
    x = 305,987,942,237.04/812,072.40
  6. Step 6: Final answer
    x = 376,798.84

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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.