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Finding the Fourth Proportional to 658.26, 905.73 and 603.59

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Solution

The fourth proportional to 658.26, 905.73 and 603.59 is: 830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.26 : 905.73 = 603.59 : x
  2. Step 2: Convert to fraction form
    658.26/905.73 = 603.59/x
  3. Step 3: Cross multiply
    658.26x = 905.73 × 603.59
  4. Step 4: Simplify right side
    658.26x = 546,686.18
  5. Step 5: Solve for x
    x = 546,686.18/658.26
  6. Step 6: Final answer
    x = 830.50

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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.