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Finding the Fourth Proportional to 625.66, 934.01 and 543.67

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Solution

The fourth proportional to 625.66, 934.01 and 543.67 is: 811.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.66 : 934.01 = 543.67 : x
  2. Step 2: Convert to fraction form
    625.66/934.01 = 543.67/x
  3. Step 3: Cross multiply
    625.66x = 934.01 × 543.67
  4. Step 4: Simplify right side
    625.66x = 507,793.22
  5. Step 5: Solve for x
    x = 507,793.22/625.66
  6. Step 6: Final answer
    x = 811.61

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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.