Home / 1,380,682.33-1,903,711.31-945,310.78

Finding the Fourth Proportional to 1,380,682.33, 1,903,711.31 and 945,310.78

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Solution

The fourth proportional to 1,380,682.33, 1,903,711.31 and 945,310.78 is: 1,303,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,682.33 : 1,903,711.31 = 945,310.78 : x
  2. Step 2: Convert to fraction form
    1,380,682.33/1,903,711.31 = 945,310.78/x
  3. Step 3: Cross multiply
    1,380,682.33x = 1,903,711.31 × 945,310.78
  4. Step 4: Simplify right side
    1,380,682.33x = 1,799,598,823,350.92
  5. Step 5: Solve for x
    x = 1,799,598,823,350.92/1,380,682.33
  6. Step 6: Final answer
    x = 1,303,412.66

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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.