Home / 1,785,619.84-2,679,286.80-1,111,525.12

Finding the Fourth Proportional to 1,785,619.84, 2,679,286.80 and 1,111,525.12

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Solution

The fourth proportional to 1,785,619.84, 2,679,286.80 and 1,111,525.12 is: 1,667,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,619.84 : 2,679,286.80 = 1,111,525.12 : x
  2. Step 2: Convert to fraction form
    1,785,619.84/2,679,286.80 = 1,111,525.12/x
  3. Step 3: Cross multiply
    1,785,619.84x = 2,679,286.80 × 1,111,525.12
  4. Step 4: Simplify right side
    1,785,619.84x = 2,978,094,581,884.42
  5. Step 5: Solve for x
    x = 2,978,094,581,884.42/1,785,619.84
  6. Step 6: Final answer
    x = 1,667,821.18

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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.