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Finding the Fourth Proportional to 603.52, 909.33 and 545.81

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Solution

The fourth proportional to 603.52, 909.33 and 545.81 is: 822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.52 : 909.33 = 545.81 : x
  2. Step 2: Convert to fraction form
    603.52/909.33 = 545.81/x
  3. Step 3: Cross multiply
    603.52x = 909.33 × 545.81
  4. Step 4: Simplify right side
    603.52x = 496,316.86
  5. Step 5: Solve for x
    x = 496,316.86/603.52
  6. Step 6: Final answer
    x = 822.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.