Home / 1,388,336.76-2,081,979.54-756,906.84

Finding the Fourth Proportional to 1,388,336.76, 2,081,979.54 and 756,906.84

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Solution

The fourth proportional to 1,388,336.76, 2,081,979.54 and 756,906.84 is: 1,135,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,336.76 : 2,081,979.54 = 756,906.84 : x
  2. Step 2: Convert to fraction form
    1,388,336.76/2,081,979.54 = 756,906.84/x
  3. Step 3: Cross multiply
    1,388,336.76x = 2,081,979.54 × 756,906.84
  4. Step 4: Simplify right side
    1,388,336.76x = 1,575,864,554,566.05
  5. Step 5: Solve for x
    x = 1,575,864,554,566.05/1,388,336.76
  6. Step 6: Final answer
    x = 1,135,073.71

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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.