Home / 1,386,019.80-2,081,168.10-756,163.80

Finding the Fourth Proportional to 1,386,019.80, 2,081,168.10 and 756,163.80

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Solution

The fourth proportional to 1,386,019.80, 2,081,168.10 and 756,163.80 is: 1,135,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,019.80 : 2,081,168.10 = 756,163.80 : x
  2. Step 2: Convert to fraction form
    1,386,019.80/2,081,168.10 = 756,163.80/x
  3. Step 3: Cross multiply
    1,386,019.80x = 2,081,168.10 × 756,163.80
  4. Step 4: Simplify right side
    1,386,019.80x = 1,573,703,978,934.78
  5. Step 5: Solve for x
    x = 1,573,703,978,934.78/1,386,019.80
  6. Step 6: Final answer
    x = 1,135,412.34

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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.