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Finding the Fourth Proportional to 548.76, 756.06 and 450.34

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Solution

The fourth proportional to 548.76, 756.06 and 450.34 is: 620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.76 : 756.06 = 450.34 : x
  2. Step 2: Convert to fraction form
    548.76/756.06 = 450.34/x
  3. Step 3: Cross multiply
    548.76x = 756.06 × 450.34
  4. Step 4: Simplify right side
    548.76x = 340,484.06
  5. Step 5: Solve for x
    x = 340,484.06/548.76
  6. Step 6: Final answer
    x = 620.46

Related Problems

Find fourth proportional to 274.38, 378.03 and 225.17
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Double scale
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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.