Home / 1,820,175.12-2,728,049.16-1,287,849.84

Finding the Fourth Proportional to 1,820,175.12, 2,728,049.16 and 1,287,849.84

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Solution

The fourth proportional to 1,820,175.12, 2,728,049.16 and 1,287,849.84 is: 1,930,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,175.12 : 2,728,049.16 = 1,287,849.84 : x
  2. Step 2: Convert to fraction form
    1,820,175.12/2,728,049.16 = 1,287,849.84/x
  3. Step 3: Cross multiply
    1,820,175.12x = 2,728,049.16 × 1,287,849.84
  4. Step 4: Simplify right side
    1,820,175.12x = 3,513,317,674,218.14
  5. Step 5: Solve for x
    x = 3,513,317,674,218.14/1,820,175.12
  6. Step 6: Final answer
    x = 1,930,208.60

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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.