Home / 1,378,418.75-1,902,218.96-766,558.07

Finding the Fourth Proportional to 1,378,418.75, 1,902,218.96 and 766,558.07

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Solution

The fourth proportional to 1,378,418.75, 1,902,218.96 and 766,558.07 is: 1,057,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,418.75 : 1,902,218.96 = 766,558.07 : x
  2. Step 2: Convert to fraction form
    1,378,418.75/1,902,218.96 = 766,558.07/x
  3. Step 3: Cross multiply
    1,378,418.75x = 1,902,218.96 × 766,558.07
  4. Step 4: Simplify right side
    1,378,418.75x = 1,458,161,294,695.01
  5. Step 5: Solve for x
    x = 1,458,161,294,695.01/1,378,418.75
  6. Step 6: Final answer
    x = 1,057,850.74

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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.