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Finding the Fourth Proportional to 439,348.33, 659,026.01 and 287,673.27

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Solution

The fourth proportional to 439,348.33, 659,026.01 and 287,673.27 is: 431,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,348.33 : 659,026.01 = 287,673.27 : x
  2. Step 2: Convert to fraction form
    439,348.33/659,026.01 = 287,673.27/x
  3. Step 3: Cross multiply
    439,348.33x = 659,026.01 × 287,673.27
  4. Step 4: Simplify right side
    439,348.33x = 189,584,167,311.75
  5. Step 5: Solve for x
    x = 189,584,167,311.75/439,348.33
  6. Step 6: Final answer
    x = 431,512.21

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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.