Home / 775,860.55-1,163,789.91-243,422.64

Finding the Fourth Proportional to 775,860.55, 1,163,789.91 and 243,422.64

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Solution

The fourth proportional to 775,860.55, 1,163,789.91 and 243,422.64 is: 365,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,860.55 : 1,163,789.91 = 243,422.64 : x
  2. Step 2: Convert to fraction form
    775,860.55/1,163,789.91 = 243,422.64/x
  3. Step 3: Cross multiply
    775,860.55x = 1,163,789.91 × 243,422.64
  4. Step 4: Simplify right side
    775,860.55x = 283,292,812,297.56
  5. Step 5: Solve for x
    x = 283,292,812,297.56/775,860.55
  6. Step 6: Final answer
    x = 365,133.67

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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.