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Finding the Fourth Proportional to 414,365.79, 621,548.70 and 274,091.61

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Solution

The fourth proportional to 414,365.79, 621,548.70 and 274,091.61 is: 411,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,365.79 : 621,548.70 = 274,091.61 : x
  2. Step 2: Convert to fraction form
    414,365.79/621,548.70 = 274,091.61/x
  3. Step 3: Cross multiply
    414,365.79x = 621,548.70 × 274,091.61
  4. Step 4: Simplify right side
    414,365.79x = 170,361,283,876.41
  5. Step 5: Solve for x
    x = 170,361,283,876.41/414,365.79
  6. Step 6: Final answer
    x = 411,137.42

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Similar ratio
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1.5x scale

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.