Home / 859,277.28-1,289,507.61-298,311.78

Finding the Fourth Proportional to 859,277.28, 1,289,507.61 and 298,311.78

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Solution

The fourth proportional to 859,277.28, 1,289,507.61 and 298,311.78 is: 447,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,277.28 : 1,289,507.61 = 298,311.78 : x
  2. Step 2: Convert to fraction form
    859,277.28/1,289,507.61 = 298,311.78/x
  3. Step 3: Cross multiply
    859,277.28x = 1,289,507.61 × 298,311.78
  4. Step 4: Simplify right side
    859,277.28x = 384,675,310,462.65
  5. Step 5: Solve for x
    x = 384,675,310,462.65/859,277.28
  6. Step 6: Final answer
    x = 447,673.08

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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.