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Finding the Fourth Proportional to 554.48, 830.52 and 539.12

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Solution

The fourth proportional to 554.48, 830.52 and 539.12 is: 807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.48 : 830.52 = 539.12 : x
  2. Step 2: Convert to fraction form
    554.48/830.52 = 539.12/x
  3. Step 3: Cross multiply
    554.48x = 830.52 × 539.12
  4. Step 4: Simplify right side
    554.48x = 447,749.94
  5. Step 5: Solve for x
    x = 447,749.94/554.48
  6. Step 6: Final answer
    x = 807.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.