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Finding the Fourth Proportional to 587.05, 808.50 and 453.78

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Solution

The fourth proportional to 587.05, 808.50 and 453.78 is: 624.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.05 : 808.50 = 453.78 : x
  2. Step 2: Convert to fraction form
    587.05/808.50 = 453.78/x
  3. Step 3: Cross multiply
    587.05x = 808.50 × 453.78
  4. Step 4: Simplify right side
    587.05x = 366,879.00
  5. Step 5: Solve for x
    x = 366,879.00/587.05
  6. Step 6: Final answer
    x = 624.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.