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Finding the Fourth Proportional to 624.30, 859.86 and 541.41

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Solution

The fourth proportional to 624.30, 859.86 and 541.41 is: 745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.30 : 859.86 = 541.41 : x
  2. Step 2: Convert to fraction form
    624.30/859.86 = 541.41/x
  3. Step 3: Cross multiply
    624.30x = 859.86 × 541.41
  4. Step 4: Simplify right side
    624.30x = 465,536.80
  5. Step 5: Solve for x
    x = 465,536.80/624.30
  6. Step 6: Final answer
    x = 745.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.