Home / 1,379,340.46-1,903,204.56-806,269.78

Finding the Fourth Proportional to 1,379,340.46, 1,903,204.56 and 806,269.78

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Solution

The fourth proportional to 1,379,340.46, 1,903,204.56 and 806,269.78 is: 1,112,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,340.46 : 1,903,204.56 = 806,269.78 : x
  2. Step 2: Convert to fraction form
    1,379,340.46/1,903,204.56 = 806,269.78/x
  3. Step 3: Cross multiply
    1,379,340.46x = 1,903,204.56 × 806,269.78
  4. Step 4: Simplify right side
    1,379,340.46x = 1,534,496,321,886.20
  5. Step 5: Solve for x
    x = 1,534,496,321,886.20/1,379,340.46
  6. Step 6: Final answer
    x = 1,112,485.54

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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.