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Finding the Fourth Proportional to 601.92, 831.02 and 415.34

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Solution

The fourth proportional to 601.92, 831.02 and 415.34 is: 573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.92 : 831.02 = 415.34 : x
  2. Step 2: Convert to fraction form
    601.92/831.02 = 415.34/x
  3. Step 3: Cross multiply
    601.92x = 831.02 × 415.34
  4. Step 4: Simplify right side
    601.92x = 345,155.85
  5. Step 5: Solve for x
    x = 345,155.85/601.92
  6. Step 6: Final answer
    x = 573.42

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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.