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Finding the Fourth Proportional to 625.06, 937.76 and 557.06

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Solution

The fourth proportional to 625.06, 937.76 and 557.06 is: 835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.06 : 937.76 = 557.06 : x
  2. Step 2: Convert to fraction form
    625.06/937.76 = 557.06/x
  3. Step 3: Cross multiply
    625.06x = 937.76 × 557.06
  4. Step 4: Simplify right side
    625.06x = 522,388.59
  5. Step 5: Solve for x
    x = 522,388.59/625.06
  6. Step 6: Final answer
    x = 835.74

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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.