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Finding the Fourth Proportional to 603.56, 831.22 and 520.62

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Solution

The fourth proportional to 603.56, 831.22 and 520.62 is: 717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.56 : 831.22 = 520.62 : x
  2. Step 2: Convert to fraction form
    603.56/831.22 = 520.62/x
  3. Step 3: Cross multiply
    603.56x = 831.22 × 520.62
  4. Step 4: Simplify right side
    603.56x = 432,748.45
  5. Step 5: Solve for x
    x = 432,748.45/603.56
  6. Step 6: Final answer
    x = 717.00

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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.