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Finding the Fourth Proportional to 608,972.60, 911,638.95 and 368,358.33

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Solution

The fourth proportional to 608,972.60, 911,638.95 and 368,358.33 is: 551,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,972.60 : 911,638.95 = 368,358.33 : x
  2. Step 2: Convert to fraction form
    608,972.60/911,638.95 = 368,358.33/x
  3. Step 3: Cross multiply
    608,972.60x = 911,638.95 × 368,358.33
  4. Step 4: Simplify right side
    608,972.60x = 335,809,801,184.95
  5. Step 5: Solve for x
    x = 335,809,801,184.95/608,972.60
  6. Step 6: Final answer
    x = 551,436.63

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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.