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Finding the Fourth Proportional to 541.98, 747.45 and 425.34

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Solution

The fourth proportional to 541.98, 747.45 and 425.34 is: 586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.98 : 747.45 = 425.34 : x
  2. Step 2: Convert to fraction form
    541.98/747.45 = 425.34/x
  3. Step 3: Cross multiply
    541.98x = 747.45 × 425.34
  4. Step 4: Simplify right side
    541.98x = 317,920.38
  5. Step 5: Solve for x
    x = 317,920.38/541.98
  6. Step 6: Final answer
    x = 586.59

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1.5x scale

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.