Home / 739,936.80-1,109,905.20-266,637.60

Finding the Fourth Proportional to 739,936.80, 1,109,905.20 and 266,637.60

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Solution

The fourth proportional to 739,936.80, 1,109,905.20 and 266,637.60 is: 399,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,936.80 : 1,109,905.20 = 266,637.60 : x
  2. Step 2: Convert to fraction form
    739,936.80/1,109,905.20 = 266,637.60/x
  3. Step 3: Cross multiply
    739,936.80x = 1,109,905.20 × 266,637.60
  4. Step 4: Simplify right side
    739,936.80x = 295,942,458,755.52
  5. Step 5: Solve for x
    x = 295,942,458,755.52/739,936.80
  6. Step 6: Final answer
    x = 399,956.40

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Double scale
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Similar ratio
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1.5x scale

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.