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Finding the Fourth Proportional to 483,294.42, 666,872.17 and 279,305.95

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Solution

The fourth proportional to 483,294.42, 666,872.17 and 279,305.95 is: 385,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,294.42 : 666,872.17 = 279,305.95 : x
  2. Step 2: Convert to fraction form
    483,294.42/666,872.17 = 279,305.95/x
  3. Step 3: Cross multiply
    483,294.42x = 666,872.17 × 279,305.95
  4. Step 4: Simplify right side
    483,294.42x = 186,261,364,970.41
  5. Step 5: Solve for x
    x = 186,261,364,970.41/483,294.42
  6. Step 6: Final answer
    x = 385,399.37

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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.