Home / 812,056.40-1,218,257.40-251,147.60

Finding the Fourth Proportional to 812,056.40, 1,218,257.40 and 251,147.60

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Solution

The fourth proportional to 812,056.40, 1,218,257.40 and 251,147.60 is: 376,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,056.40 : 1,218,257.40 = 251,147.60 : x
  2. Step 2: Convert to fraction form
    812,056.40/1,218,257.40 = 251,147.60/x
  3. Step 3: Cross multiply
    812,056.40x = 1,218,257.40 × 251,147.60
  4. Step 4: Simplify right side
    812,056.40x = 305,962,422,192.24
  5. Step 5: Solve for x
    x = 305,962,422,192.24/812,056.40
  6. Step 6: Final answer
    x = 376,774.84

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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.