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Finding the Fourth Proportional to 488,975.15, 733,320.43 and 189,388.91

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Solution

The fourth proportional to 488,975.15, 733,320.43 and 189,388.91 is: 284,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,975.15 : 733,320.43 = 189,388.91 : x
  2. Step 2: Convert to fraction form
    488,975.15/733,320.43 = 189,388.91/x
  3. Step 3: Cross multiply
    488,975.15x = 733,320.43 × 189,388.91
  4. Step 4: Simplify right side
    488,975.15x = 138,882,752,778.36
  5. Step 5: Solve for x
    x = 138,882,752,778.36/488,975.15
  6. Step 6: Final answer
    x = 284,028.25

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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.