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Finding the Fourth Proportional to 655,366.11, 983,431.28 and 276,263.64

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Solution

The fourth proportional to 655,366.11, 983,431.28 and 276,263.64 is: 414,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,366.11 : 983,431.28 = 276,263.64 : x
  2. Step 2: Convert to fraction form
    655,366.11/983,431.28 = 276,263.64/x
  3. Step 3: Cross multiply
    655,366.11x = 983,431.28 × 276,263.64
  4. Step 4: Simplify right side
    655,366.11x = 271,686,305,102.66
  5. Step 5: Solve for x
    x = 271,686,305,102.66/655,366.11
  6. Step 6: Final answer
    x = 414,556.54

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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.