Home / 764,138.80-1,145,530.23-384,563.08

Finding the Fourth Proportional to 764,138.80, 1,145,530.23 and 384,563.08

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Solution

The fourth proportional to 764,138.80, 1,145,530.23 and 384,563.08 is: 576,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,138.80 : 1,145,530.23 = 384,563.08 : x
  2. Step 2: Convert to fraction form
    764,138.80/1,145,530.23 = 384,563.08/x
  3. Step 3: Cross multiply
    764,138.80x = 1,145,530.23 × 384,563.08
  4. Step 4: Simplify right side
    764,138.80x = 440,528,633,481.91
  5. Step 5: Solve for x
    x = 440,528,633,481.91/764,138.80
  6. Step 6: Final answer
    x = 576,503.42

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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.