Home / 723,729.20-1,085,723.40-303,047.60

Finding the Fourth Proportional to 723,729.20, 1,085,723.40 and 303,047.60

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Solution

The fourth proportional to 723,729.20, 1,085,723.40 and 303,047.60 is: 454,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,729.20 : 1,085,723.40 = 303,047.60 : x
  2. Step 2: Convert to fraction form
    723,729.20/1,085,723.40 = 303,047.60/x
  3. Step 3: Cross multiply
    723,729.20x = 1,085,723.40 × 303,047.60
  4. Step 4: Simplify right side
    723,729.20x = 329,025,870,633.84
  5. Step 5: Solve for x
    x = 329,025,870,633.84/723,729.20
  6. Step 6: Final answer
    x = 454,625.67

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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.