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Finding the Fourth Proportional to 634.23, 946.91 and 547.47

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Solution

The fourth proportional to 634.23, 946.91 and 547.47 is: 817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.23 : 946.91 = 547.47 : x
  2. Step 2: Convert to fraction form
    634.23/946.91 = 547.47/x
  3. Step 3: Cross multiply
    634.23x = 946.91 × 547.47
  4. Step 4: Simplify right side
    634.23x = 518,406.19
  5. Step 5: Solve for x
    x = 518,406.19/634.23
  6. Step 6: Final answer
    x = 817.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.