Home / 1,107,621.32-1,661,431.78-266,173.08

Finding the Fourth Proportional to 1,107,621.32, 1,661,431.78 and 266,173.08

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Solution

The fourth proportional to 1,107,621.32, 1,661,431.78 and 266,173.08 is: 399,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,621.32 : 1,661,431.78 = 266,173.08 : x
  2. Step 2: Convert to fraction form
    1,107,621.32/1,661,431.78 = 266,173.08/x
  3. Step 3: Cross multiply
    1,107,621.32x = 1,661,431.78 × 266,173.08
  4. Step 4: Simplify right side
    1,107,621.32x = 442,228,414,092.48
  5. Step 5: Solve for x
    x = 442,228,414,092.48/1,107,621.32
  6. Step 6: Final answer
    x = 399,259.57

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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.