Home / 738,621.18-1,107,713.07-206,013.78

Finding the Fourth Proportional to 738,621.18, 1,107,713.07 and 206,013.78

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Solution

The fourth proportional to 738,621.18, 1,107,713.07 and 206,013.78 is: 308,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,621.18 : 1,107,713.07 = 206,013.78 : x
  2. Step 2: Convert to fraction form
    738,621.18/1,107,713.07 = 206,013.78/x
  3. Step 3: Cross multiply
    738,621.18x = 1,107,713.07 × 206,013.78
  4. Step 4: Simplify right side
    738,621.18x = 228,204,156,706.11
  5. Step 5: Solve for x
    x = 228,204,156,706.11/738,621.18
  6. Step 6: Final answer
    x = 308,959.67

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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.