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Finding the Fourth Proportional to 451,364.30, 622,946.52 and 279,337.69

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Solution

The fourth proportional to 451,364.30, 622,946.52 and 279,337.69 is: 385,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,364.30 : 622,946.52 = 279,337.69 : x
  2. Step 2: Convert to fraction form
    451,364.30/622,946.52 = 279,337.69/x
  3. Step 3: Cross multiply
    451,364.30x = 622,946.52 × 279,337.69
  4. Step 4: Simplify right side
    451,364.30x = 174,012,441,702.62
  5. Step 5: Solve for x
    x = 174,012,441,702.62/451,364.30
  6. Step 6: Final answer
    x = 385,525.49

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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.