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Finding the Fourth Proportional to 532.74, 798.28 and 416.90

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Solution

The fourth proportional to 532.74, 798.28 and 416.90 is: 624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.74 : 798.28 = 416.90 : x
  2. Step 2: Convert to fraction form
    532.74/798.28 = 416.90/x
  3. Step 3: Cross multiply
    532.74x = 798.28 × 416.90
  4. Step 4: Simplify right side
    532.74x = 332,802.93
  5. Step 5: Solve for x
    x = 332,802.93/532.74
  6. Step 6: Final answer
    x = 624.70

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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.