Home / 1,143,408.73-1,715,371.85-385,229.60

Finding the Fourth Proportional to 1,143,408.73, 1,715,371.85 and 385,229.60

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Solution

The fourth proportional to 1,143,408.73, 1,715,371.85 and 385,229.60 is: 577,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,408.73 : 1,715,371.85 = 385,229.60 : x
  2. Step 2: Convert to fraction form
    1,143,408.73/1,715,371.85 = 385,229.60/x
  3. Step 3: Cross multiply
    1,143,408.73x = 1,715,371.85 × 385,229.60
  4. Step 4: Simplify right side
    1,143,408.73x = 660,812,004,012.98
  5. Step 5: Solve for x
    x = 660,812,004,012.98/1,143,408.73
  6. Step 6: Final answer
    x = 577,931.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.