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Finding the Fourth Proportional to 545.94, 818.64 and 494.10

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Solution

The fourth proportional to 545.94, 818.64 and 494.10 is: 740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.94 : 818.64 = 494.10 : x
  2. Step 2: Convert to fraction form
    545.94/818.64 = 494.10/x
  3. Step 3: Cross multiply
    545.94x = 818.64 × 494.10
  4. Step 4: Simplify right side
    545.94x = 404,490.02
  5. Step 5: Solve for x
    x = 404,490.02/545.94
  6. Step 6: Final answer
    x = 740.91

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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.