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Finding the Fourth Proportional to 607,963.22, 911,911.95 and 308,436.03

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Solution

The fourth proportional to 607,963.22, 911,911.95 and 308,436.03 is: 462,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,963.22 : 911,911.95 = 308,436.03 : x
  2. Step 2: Convert to fraction form
    607,963.22/911,911.95 = 308,436.03/x
  3. Step 3: Cross multiply
    607,963.22x = 911,911.95 × 308,436.03
  4. Step 4: Simplify right side
    607,963.22x = 281,266,498,135.33
  5. Step 5: Solve for x
    x = 281,266,498,135.33/607,963.22
  6. Step 6: Final answer
    x = 462,637.36

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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.