Home / 427,817.49-590,788.20-275,120.85

Finding the Fourth Proportional to 427,817.49, 590,788.20 and 275,120.85

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Solution

The fourth proportional to 427,817.49, 590,788.20 and 275,120.85 is: 379,924.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,817.49 : 590,788.20 = 275,120.85 : x
  2. Step 2: Convert to fraction form
    427,817.49/590,788.20 = 275,120.85/x
  3. Step 3: Cross multiply
    427,817.49x = 590,788.20 × 275,120.85
  4. Step 4: Simplify right side
    427,817.49x = 162,538,151,753.97
  5. Step 5: Solve for x
    x = 162,538,151,753.97/427,817.49
  6. Step 6: Final answer
    x = 379,924.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.