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Finding the Fourth Proportional to 952.15, 1,425.45 and 555.62

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Solution

The fourth proportional to 952.15, 1,425.45 and 555.62 is: 831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.15 : 1,425.45 = 555.62 : x
  2. Step 2: Convert to fraction form
    952.15/1,425.45 = 555.62/x
  3. Step 3: Cross multiply
    952.15x = 1,425.45 × 555.62
  4. Step 4: Simplify right side
    952.15x = 792,006.75
  5. Step 5: Solve for x
    x = 792,006.75/952.15
  6. Step 6: Final answer
    x = 831.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.