Home / 863,621.72-1,296,555.15-664,082.23

Finding the Fourth Proportional to 863,621.72, 1,296,555.15 and 664,082.23

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Solution

The fourth proportional to 863,621.72, 1,296,555.15 and 664,082.23 is: 996,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,621.72 : 1,296,555.15 = 664,082.23 : x
  2. Step 2: Convert to fraction form
    863,621.72/1,296,555.15 = 664,082.23/x
  3. Step 3: Cross multiply
    863,621.72x = 1,296,555.15 × 664,082.23
  4. Step 4: Simplify right side
    863,621.72x = 861,019,235,329.98
  5. Step 5: Solve for x
    x = 861,019,235,329.98/863,621.72
  6. Step 6: Final answer
    x = 996,986.55

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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.