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Finding the Fourth Proportional to 519,500.55, 717,074.07 and 304,727.43

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Solution

The fourth proportional to 519,500.55, 717,074.07 and 304,727.43 is: 420,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,500.55 : 717,074.07 = 304,727.43 : x
  2. Step 2: Convert to fraction form
    519,500.55/717,074.07 = 304,727.43/x
  3. Step 3: Cross multiply
    519,500.55x = 717,074.07 × 304,727.43
  4. Step 4: Simplify right side
    519,500.55x = 218,512,138,470.74
  5. Step 5: Solve for x
    x = 218,512,138,470.74/519,500.55
  6. Step 6: Final answer
    x = 420,619.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.