Home / 386,629.22-579,652.23-253,542.98

Finding the Fourth Proportional to 386,629.22, 579,652.23 and 253,542.98

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Solution

The fourth proportional to 386,629.22, 579,652.23 and 253,542.98 is: 380,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,629.22 : 579,652.23 = 253,542.98 : x
  2. Step 2: Convert to fraction form
    386,629.22/579,652.23 = 253,542.98/x
  3. Step 3: Cross multiply
    386,629.22x = 579,652.23 × 253,542.98
  4. Step 4: Simplify right side
    386,629.22x = 146,966,753,757.85
  5. Step 5: Solve for x
    x = 146,966,753,757.85/386,629.22
  6. Step 6: Final answer
    x = 380,123.25

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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.