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Finding the Fourth Proportional to 572.91, 790.98 and 376.75

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Solution

The fourth proportional to 572.91, 790.98 and 376.75 is: 520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.91 : 790.98 = 376.75 : x
  2. Step 2: Convert to fraction form
    572.91/790.98 = 376.75/x
  3. Step 3: Cross multiply
    572.91x = 790.98 × 376.75
  4. Step 4: Simplify right side
    572.91x = 298,001.72
  5. Step 5: Solve for x
    x = 298,001.72/572.91
  6. Step 6: Final answer
    x = 520.15

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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.