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Finding the Fourth Proportional to 405,374.44, 607,468.38 and 228,227.08

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Solution

The fourth proportional to 405,374.44, 607,468.38 and 228,227.08 is: 342,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,374.44 : 607,468.38 = 228,227.08 : x
  2. Step 2: Convert to fraction form
    405,374.44/607,468.38 = 228,227.08/x
  3. Step 3: Cross multiply
    405,374.44x = 607,468.38 × 228,227.08
  4. Step 4: Simplify right side
    405,374.44x = 138,640,734,559.73
  5. Step 5: Solve for x
    x = 138,640,734,559.73/405,374.44
  6. Step 6: Final answer
    x = 342,006.60

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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.