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Finding the Fourth Proportional to 512,468.18, 768,623.41 and 170,917.62

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Solution

The fourth proportional to 512,468.18, 768,623.41 and 170,917.62 is: 256,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,468.18 : 768,623.41 = 170,917.62 : x
  2. Step 2: Convert to fraction form
    512,468.18/768,623.41 = 170,917.62/x
  3. Step 3: Cross multiply
    512,468.18x = 768,623.41 × 170,917.62
  4. Step 4: Simplify right side
    512,468.18x = 131,371,283,913.48
  5. Step 5: Solve for x
    x = 131,371,283,913.48/512,468.18
  6. Step 6: Final answer
    x = 256,350.13

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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.