Home / 1,381,427.77-1,906,341.60-769,579.69

Finding the Fourth Proportional to 1,381,427.77, 1,906,341.60 and 769,579.69

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Solution

The fourth proportional to 1,381,427.77, 1,906,341.60 and 769,579.69 is: 1,062,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,427.77 : 1,906,341.60 = 769,579.69 : x
  2. Step 2: Convert to fraction form
    1,381,427.77/1,906,341.60 = 769,579.69/x
  3. Step 3: Cross multiply
    1,381,427.77x = 1,906,341.60 × 769,579.69
  4. Step 4: Simplify right side
    1,381,427.77x = 1,467,081,777,562.10
  5. Step 5: Solve for x
    x = 1,467,081,777,562.10/1,381,427.77
  6. Step 6: Final answer
    x = 1,062,003.97

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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.