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Finding the Fourth Proportional to 484,594.52, 668,663.82 and 280,664.64

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Solution

The fourth proportional to 484,594.52, 668,663.82 and 280,664.64 is: 387,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,594.52 : 668,663.82 = 280,664.64 : x
  2. Step 2: Convert to fraction form
    484,594.52/668,663.82 = 280,664.64/x
  3. Step 3: Cross multiply
    484,594.52x = 668,663.82 × 280,664.64
  4. Step 4: Simplify right side
    484,594.52x = 187,670,290,321.33
  5. Step 5: Solve for x
    x = 187,670,290,321.33/484,594.52
  6. Step 6: Final answer
    x = 387,272.83

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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.