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Finding the Fourth Proportional to 655,059.20, 903,999.36 and 368,589.48

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Solution

The fourth proportional to 655,059.20, 903,999.36 and 368,589.48 is: 508,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,059.20 : 903,999.36 = 368,589.48 : x
  2. Step 2: Convert to fraction form
    655,059.20/903,999.36 = 368,589.48/x
  3. Step 3: Cross multiply
    655,059.20x = 903,999.36 × 368,589.48
  4. Step 4: Simplify right side
    655,059.20x = 333,204,654,022.73
  5. Step 5: Solve for x
    x = 333,204,654,022.73/655,059.20
  6. Step 6: Final answer
    x = 508,663.42

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1.5x scale

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.