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Finding the Fourth Proportional to 540,121.82, 745,375.92 and 298,409.96

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Solution

The fourth proportional to 540,121.82, 745,375.92 and 298,409.96 is: 411,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,121.82 : 745,375.92 = 298,409.96 : x
  2. Step 2: Convert to fraction form
    540,121.82/745,375.92 = 298,409.96/x
  3. Step 3: Cross multiply
    540,121.82x = 745,375.92 × 298,409.96
  4. Step 4: Simplify right side
    540,121.82x = 222,427,600,335.60
  5. Step 5: Solve for x
    x = 222,427,600,335.60/540,121.82
  6. Step 6: Final answer
    x = 411,810.07

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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.