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Finding the Fourth Proportional to 3,984,368.18, 5,498,687.49 and 2,265,648.50

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Solution

The fourth proportional to 3,984,368.18, 5,498,687.49 and 2,265,648.50 is: 3,126,742.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984,368.18 : 5,498,687.49 = 2,265,648.50 : x
  2. Step 2: Convert to fraction form
    3,984,368.18/5,498,687.49 = 2,265,648.50/x
  3. Step 3: Cross multiply
    3,984,368.18x = 5,498,687.49 × 2,265,648.50
  4. Step 4: Simplify right side
    3,984,368.18x = 12,458,093,063,687.27
  5. Step 5: Solve for x
    x = 12,458,093,063,687.27/3,984,368.18
  6. Step 6: Final answer
    x = 3,126,742.43

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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.