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Finding the Fourth Proportional to 483,294.36, 666,872.08 and 279,305.89

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Solution

The fourth proportional to 483,294.36, 666,872.08 and 279,305.89 is: 385,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,294.36 : 666,872.08 = 279,305.89 : x
  2. Step 2: Convert to fraction form
    483,294.36/666,872.08 = 279,305.89/x
  3. Step 3: Cross multiply
    483,294.36x = 666,872.08 × 279,305.89
  4. Step 4: Simplify right side
    483,294.36x = 186,261,301,003.27
  5. Step 5: Solve for x
    x = 186,261,301,003.27/483,294.36
  6. Step 6: Final answer
    x = 385,399.28

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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.