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Finding the Fourth Proportional to 494,304.71, 682,205.09 and 279,444.78

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Solution

The fourth proportional to 494,304.71, 682,205.09 and 279,444.78 is: 385,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,304.71 : 682,205.09 = 279,444.78 : x
  2. Step 2: Convert to fraction form
    494,304.71/682,205.09 = 279,444.78/x
  3. Step 3: Cross multiply
    494,304.71x = 682,205.09 × 279,444.78
  4. Step 4: Simplify right side
    494,304.71x = 190,638,651,181.40
  5. Step 5: Solve for x
    x = 190,638,651,181.40/494,304.71
  6. Step 6: Final answer
    x = 385,670.31

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1.5x scale

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.