Home / 442,514-610,715.40-272,743.76

Finding the Fourth Proportional to 442,514, 610,715.40 and 272,743.76

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Solution

The fourth proportional to 442,514, 610,715.40 and 272,743.76 is: 376,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,514 : 610,715.40 = 272,743.76 : x
  2. Step 2: Convert to fraction form
    442,514/610,715.40 = 272,743.76/x
  3. Step 3: Cross multiply
    442,514x = 610,715.40 × 272,743.76
  4. Step 4: Simplify right side
    442,514x = 166,568,814,485.90
  5. Step 5: Solve for x
    x = 166,568,814,485.90/442,514
  6. Step 6: Final answer
    x = 376,414.79

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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.