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Finding the Fourth Proportional to 534.56, 736.80 and 514.40

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Solution

The fourth proportional to 534.56, 736.80 and 514.40 is: 709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.56 : 736.80 = 514.40 : x
  2. Step 2: Convert to fraction form
    534.56/736.80 = 514.40/x
  3. Step 3: Cross multiply
    534.56x = 736.80 × 514.40
  4. Step 4: Simplify right side
    534.56x = 379,009.92
  5. Step 5: Solve for x
    x = 379,009.92/534.56
  6. Step 6: Final answer
    x = 709.01

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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.