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Finding the Fourth Proportional to 545.36, 813.04 and 508.88

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Solution

The fourth proportional to 545.36, 813.04 and 508.88 is: 758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.36 : 813.04 = 508.88 : x
  2. Step 2: Convert to fraction form
    545.36/813.04 = 508.88/x
  3. Step 3: Cross multiply
    545.36x = 813.04 × 508.88
  4. Step 4: Simplify right side
    545.36x = 413,739.80
  5. Step 5: Solve for x
    x = 413,739.80/545.36
  6. Step 6: Final answer
    x = 758.65

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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.