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Finding the Fourth Proportional to 624.43, 934.59 and 556.09

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Solution

The fourth proportional to 624.43, 934.59 and 556.09 is: 832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.43 : 934.59 = 556.09 : x
  2. Step 2: Convert to fraction form
    624.43/934.59 = 556.09/x
  3. Step 3: Cross multiply
    624.43x = 934.59 × 556.09
  4. Step 4: Simplify right side
    624.43x = 519,715.90
  5. Step 5: Solve for x
    x = 519,715.90/624.43
  6. Step 6: Final answer
    x = 832.30

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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.