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Finding the Fourth Proportional to 655,268.48, 982,550.36 and 385,489.88

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Solution

The fourth proportional to 655,268.48, 982,550.36 and 385,489.88 is: 578,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,268.48 : 982,550.36 = 385,489.88 : x
  2. Step 2: Convert to fraction form
    655,268.48/982,550.36 = 385,489.88/x
  3. Step 3: Cross multiply
    655,268.48x = 982,550.36 × 385,489.88
  4. Step 4: Simplify right side
    655,268.48x = 378,763,220,370.36
  5. Step 5: Solve for x
    x = 378,763,220,370.36/655,268.48
  6. Step 6: Final answer
    x = 578,027.53

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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.