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Finding the Fourth Proportional to 545.60, 814.76 and 539.93

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Solution

The fourth proportional to 545.60, 814.76 and 539.93 is: 806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.60 : 814.76 = 539.93 : x
  2. Step 2: Convert to fraction form
    545.60/814.76 = 539.93/x
  3. Step 3: Cross multiply
    545.60x = 814.76 × 539.93
  4. Step 4: Simplify right side
    545.60x = 439,913.37
  5. Step 5: Solve for x
    x = 439,913.37/545.60
  6. Step 6: Final answer
    x = 806.29

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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.