Home / 658,768.44-909,107.60-386,839.56

Finding the Fourth Proportional to 658,768.44, 909,107.60 and 386,839.56

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Solution

The fourth proportional to 658,768.44, 909,107.60 and 386,839.56 is: 533,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,768.44 : 909,107.60 = 386,839.56 : x
  2. Step 2: Convert to fraction form
    658,768.44/909,107.60 = 386,839.56/x
  3. Step 3: Cross multiply
    658,768.44x = 909,107.60 × 386,839.56
  4. Step 4: Simplify right side
    658,768.44x = 351,678,783,976.66
  5. Step 5: Solve for x
    x = 351,678,783,976.66/658,768.44
  6. Step 6: Final answer
    x = 533,842.79

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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.