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Finding the Fourth Proportional to 439,349.33, 659,027.51 and 287,674.27

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Solution

The fourth proportional to 439,349.33, 659,027.51 and 287,674.27 is: 431,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,349.33 : 659,027.51 = 287,674.27 : x
  2. Step 2: Convert to fraction form
    439,349.33/659,027.51 = 287,674.27/x
  3. Step 3: Cross multiply
    439,349.33x = 659,027.51 × 287,674.27
  4. Step 4: Simplify right side
    439,349.33x = 189,585,257,849.17
  5. Step 5: Solve for x
    x = 189,585,257,849.17/439,349.33
  6. Step 6: Final answer
    x = 431,513.71

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Similar ratio
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1.5x scale

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.