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Finding the Fourth Proportional to 655,358.36, 983,419.65 and 276,255.88

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Solution

The fourth proportional to 655,358.36, 983,419.65 and 276,255.88 is: 414,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,358.36 : 983,419.65 = 276,255.88 : x
  2. Step 2: Convert to fraction form
    655,358.36/983,419.65 = 276,255.88/x
  3. Step 3: Cross multiply
    655,358.36x = 983,419.65 × 276,255.88
  4. Step 4: Simplify right side
    655,358.36x = 271,675,458,361.49
  5. Step 5: Solve for x
    x = 271,675,458,361.49/655,358.36
  6. Step 6: Final answer
    x = 414,544.89

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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.