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Finding the Fourth Proportional to 395,693.84, 546,306.72 and 274,796.48

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Solution

The fourth proportional to 395,693.84, 546,306.72 and 274,796.48 is: 379,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,693.84 : 546,306.72 = 274,796.48 : x
  2. Step 2: Convert to fraction form
    395,693.84/546,306.72 = 274,796.48/x
  3. Step 3: Cross multiply
    395,693.84x = 546,306.72 × 274,796.48
  4. Step 4: Simplify right side
    395,693.84x = 150,123,163,656.35
  5. Step 5: Solve for x
    x = 150,123,163,656.35/395,693.84
  6. Step 6: Final answer
    x = 379,392.22

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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.