Home / 1,321,600.71-1,823,773.55-777,768.53

Finding the Fourth Proportional to 1,321,600.71, 1,823,773.55 and 777,768.53

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Solution

The fourth proportional to 1,321,600.71, 1,823,773.55 and 777,768.53 is: 1,073,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,600.71 : 1,823,773.55 = 777,768.53 : x
  2. Step 2: Convert to fraction form
    1,321,600.71/1,823,773.55 = 777,768.53/x
  3. Step 3: Cross multiply
    1,321,600.71x = 1,823,773.55 × 777,768.53
  4. Step 4: Simplify right side
    1,321,600.71x = 1,418,473,672,474.87
  5. Step 5: Solve for x
    x = 1,418,473,672,474.87/1,321,600.71
  6. Step 6: Final answer
    x = 1,073,299.72

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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.