Home / 1,107,786.84-1,661,680.27-266,338.59

Finding the Fourth Proportional to 1,107,786.84, 1,661,680.27 and 266,338.59

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Solution

The fourth proportional to 1,107,786.84, 1,661,680.27 and 266,338.59 is: 399,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,786.84 : 1,661,680.27 = 266,338.59 : x
  2. Step 2: Convert to fraction form
    1,107,786.84/1,661,680.27 = 266,338.59/x
  3. Step 3: Cross multiply
    1,107,786.84x = 1,661,680.27 × 266,338.59
  4. Step 4: Simplify right side
    1,107,786.84x = 442,569,580,142.62
  5. Step 5: Solve for x
    x = 442,569,580,142.62/1,107,786.84
  6. Step 6: Final answer
    x = 399,507.89

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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.