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Finding the Fourth Proportional to 624.51, 937.05 and 556.20

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Solution

The fourth proportional to 624.51, 937.05 and 556.20 is: 834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.51 : 937.05 = 556.20 : x
  2. Step 2: Convert to fraction form
    624.51/937.05 = 556.20/x
  3. Step 3: Cross multiply
    624.51x = 937.05 × 556.20
  4. Step 4: Simplify right side
    624.51x = 521,187.21
  5. Step 5: Solve for x
    x = 521,187.21/624.51
  6. Step 6: Final answer
    x = 834.55

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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.