Home / 386,764.66-579,586.20-274,664.44

Finding the Fourth Proportional to 386,764.66, 579,586.20 and 274,664.44

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Solution

The fourth proportional to 386,764.66, 579,586.20 and 274,664.44 is: 411,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,764.66 : 579,586.20 = 274,664.44 : x
  2. Step 2: Convert to fraction form
    386,764.66/579,586.20 = 274,664.44/x
  3. Step 3: Cross multiply
    386,764.66x = 579,586.20 × 274,664.44
  4. Step 4: Simplify right side
    386,764.66x = 159,191,719,054.73
  5. Step 5: Solve for x
    x = 159,191,719,054.73/386,764.66
  6. Step 6: Final answer
    x = 411,598.41

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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.