Home / 787,371.49-1,086,607.11-443,229.67

Finding the Fourth Proportional to 787,371.49, 1,086,607.11 and 443,229.67

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Solution

The fourth proportional to 787,371.49, 1,086,607.11 and 443,229.67 is: 611,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,371.49 : 1,086,607.11 = 443,229.67 : x
  2. Step 2: Convert to fraction form
    787,371.49/1,086,607.11 = 443,229.67/x
  3. Step 3: Cross multiply
    787,371.49x = 1,086,607.11 × 443,229.67
  4. Step 4: Simplify right side
    787,371.49x = 481,616,510,784.95
  5. Step 5: Solve for x
    x = 481,616,510,784.95/787,371.49
  6. Step 6: Final answer
    x = 611,676.34

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1.5x scale

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.