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Finding the Fourth Proportional to 603.43, 832.79 and 404.46

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Solution

The fourth proportional to 603.43, 832.79 and 404.46 is: 558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.43 : 832.79 = 404.46 : x
  2. Step 2: Convert to fraction form
    603.43/832.79 = 404.46/x
  3. Step 3: Cross multiply
    603.43x = 832.79 × 404.46
  4. Step 4: Simplify right side
    603.43x = 336,831.25
  5. Step 5: Solve for x
    x = 336,831.25/603.43
  6. Step 6: Final answer
    x = 558.20

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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.