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Finding the Fourth Proportional to 625.24, 933.71 and 618.46

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Solution

The fourth proportional to 625.24, 933.71 and 618.46 is: 923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.24 : 933.71 = 618.46 : x
  2. Step 2: Convert to fraction form
    625.24/933.71 = 618.46/x
  3. Step 3: Cross multiply
    625.24x = 933.71 × 618.46
  4. Step 4: Simplify right side
    625.24x = 577,462.29
  5. Step 5: Solve for x
    x = 577,462.29/625.24
  6. Step 6: Final answer
    x = 923.59

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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.