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Finding the Fourth Proportional to 575.84, 863.16 and 545.48

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Solution

The fourth proportional to 575.84, 863.16 and 545.48 is: 817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.84 : 863.16 = 545.48 : x
  2. Step 2: Convert to fraction form
    575.84/863.16 = 545.48/x
  3. Step 3: Cross multiply
    575.84x = 863.16 × 545.48
  4. Step 4: Simplify right side
    575.84x = 470,836.52
  5. Step 5: Solve for x
    x = 470,836.52/575.84
  6. Step 6: Final answer
    x = 817.65

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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.