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Finding the Fourth Proportional to 737,540.40, 1,106,310.60 and 405,764.40

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Solution

The fourth proportional to 737,540.40, 1,106,310.60 and 405,764.40 is: 608,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,540.40 : 1,106,310.60 = 405,764.40 : x
  2. Step 2: Convert to fraction form
    737,540.40/1,106,310.60 = 405,764.40/x
  3. Step 3: Cross multiply
    737,540.40x = 1,106,310.60 × 405,764.40
  4. Step 4: Simplify right side
    737,540.40x = 448,901,456,822.64
  5. Step 5: Solve for x
    x = 448,901,456,822.64/737,540.40
  6. Step 6: Final answer
    x = 608,646.60

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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.