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Finding the Fourth Proportional to 545.24, 812.97 and 535.52

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Solution

The fourth proportional to 545.24, 812.97 and 535.52 is: 798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.24 : 812.97 = 535.52 : x
  2. Step 2: Convert to fraction form
    545.24/812.97 = 535.52/x
  3. Step 3: Cross multiply
    545.24x = 812.97 × 535.52
  4. Step 4: Simplify right side
    545.24x = 435,361.69
  5. Step 5: Solve for x
    x = 435,361.69/545.24
  6. Step 6: Final answer
    x = 798.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.