Home / 385,530.44-578,334.38-132,777.63

Finding the Fourth Proportional to 385,530.44, 578,334.38 and 132,777.63

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Solution

The fourth proportional to 385,530.44, 578,334.38 and 132,777.63 is: 199,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,530.44 : 578,334.38 = 132,777.63 : x
  2. Step 2: Convert to fraction form
    385,530.44/578,334.38 = 132,777.63/x
  3. Step 3: Cross multiply
    385,530.44x = 578,334.38 × 132,777.63
  4. Step 4: Simplify right side
    385,530.44x = 76,789,868,406.91
  5. Step 5: Solve for x
    x = 76,789,868,406.91/385,530.44
  6. Step 6: Final answer
    x = 199,179.78

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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.