Home / 1,381,431.30-1,906,346.40-769,583.22

Finding the Fourth Proportional to 1,381,431.30, 1,906,346.40 and 769,583.22

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Solution

The fourth proportional to 1,381,431.30, 1,906,346.40 and 769,583.22 is: 1,062,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,431.30 : 1,906,346.40 = 769,583.22 : x
  2. Step 2: Convert to fraction form
    1,381,431.30/1,906,346.40 = 769,583.22/x
  3. Step 3: Cross multiply
    1,381,431.30x = 1,906,346.40 × 769,583.22
  4. Step 4: Simplify right side
    1,381,431.30x = 1,467,092,200,947.41
  5. Step 5: Solve for x
    x = 1,467,092,200,947.41/1,381,431.30
  6. Step 6: Final answer
    x = 1,062,008.80

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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.