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Finding the Fourth Proportional to 546.06, 753.63 and 421.62

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Solution

The fourth proportional to 546.06, 753.63 and 421.62 is: 581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.06 : 753.63 = 421.62 : x
  2. Step 2: Convert to fraction form
    546.06/753.63 = 421.62/x
  3. Step 3: Cross multiply
    546.06x = 753.63 × 421.62
  4. Step 4: Simplify right side
    546.06x = 317,745.48
  5. Step 5: Solve for x
    x = 317,745.48/546.06
  6. Step 6: Final answer
    x = 581.89

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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.