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Finding the Fourth Proportional to 655,729.48, 983,399.82 and 281,665

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Solution

The fourth proportional to 655,729.48, 983,399.82 and 281,665 is: 422,414.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,729.48 : 983,399.82 = 281,665 : x
  2. Step 2: Convert to fraction form
    655,729.48/983,399.82 = 281,665/x
  3. Step 3: Cross multiply
    655,729.48x = 983,399.82 × 281,665
  4. Step 4: Simplify right side
    655,729.48x = 276,989,310,300.30
  5. Step 5: Solve for x
    x = 276,989,310,300.30/655,729.48
  6. Step 6: Final answer
    x = 422,414.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.