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Finding the Fourth Proportional to 510,027.83, 703,828.60 and 280,571.70

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Solution

The fourth proportional to 510,027.83, 703,828.60 and 280,571.70 is: 387,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,027.83 : 703,828.60 = 280,571.70 : x
  2. Step 2: Convert to fraction form
    510,027.83/703,828.60 = 280,571.70/x
  3. Step 3: Cross multiply
    510,027.83x = 703,828.60 × 280,571.70
  4. Step 4: Simplify right side
    510,027.83x = 197,474,386,810.62
  5. Step 5: Solve for x
    x = 197,474,386,810.62/510,027.83
  6. Step 6: Final answer
    x = 387,183.55

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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.