Home / 1,216,993.56-1,678,936.86-814,715.16

Finding the Fourth Proportional to 1,216,993.56, 1,678,936.86 and 814,715.16

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Solution

The fourth proportional to 1,216,993.56, 1,678,936.86 and 814,715.16 is: 1,123,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,993.56 : 1,678,936.86 = 814,715.16 : x
  2. Step 2: Convert to fraction form
    1,216,993.56/1,678,936.86 = 814,715.16/x
  3. Step 3: Cross multiply
    1,216,993.56x = 1,678,936.86 × 814,715.16
  4. Step 4: Simplify right side
    1,216,993.56x = 1,367,855,312,524.80
  5. Step 5: Solve for x
    x = 1,367,855,312,524.80/1,216,993.56
  6. Step 6: Final answer
    x = 1,123,962.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.