Home / 762,758.52-1,143,975.78-289,277.88

Finding the Fourth Proportional to 762,758.52, 1,143,975.78 and 289,277.88

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Solution

The fourth proportional to 762,758.52, 1,143,975.78 and 289,277.88 is: 433,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,758.52 : 1,143,975.78 = 289,277.88 : x
  2. Step 2: Convert to fraction form
    762,758.52/1,143,975.78 = 289,277.88/x
  3. Step 3: Cross multiply
    762,758.52x = 1,143,975.78 × 289,277.88
  4. Step 4: Simplify right side
    762,758.52x = 330,926,888,409.75
  5. Step 5: Solve for x
    x = 330,926,888,409.75/762,758.52
  6. Step 6: Final answer
    x = 433,855.38

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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.