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Finding the Fourth Proportional to 548,288.82, 756,799.47 and 318,900.06

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Solution

The fourth proportional to 548,288.82, 756,799.47 and 318,900.06 is: 440,175.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,288.82 : 756,799.47 = 318,900.06 : x
  2. Step 2: Convert to fraction form
    548,288.82/756,799.47 = 318,900.06/x
  3. Step 3: Cross multiply
    548,288.82x = 756,799.47 × 318,900.06
  4. Step 4: Simplify right side
    548,288.82x = 241,343,396,390.97
  5. Step 5: Solve for x
    x = 241,343,396,390.97/548,288.82
  6. Step 6: Final answer
    x = 440,175.67

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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.