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Finding the Fourth Proportional to 574.62, 793.90 and 570.50

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Solution

The fourth proportional to 574.62, 793.90 and 570.50 is: 788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.62 : 793.90 = 570.50 : x
  2. Step 2: Convert to fraction form
    574.62/793.90 = 570.50/x
  3. Step 3: Cross multiply
    574.62x = 793.90 × 570.50
  4. Step 4: Simplify right side
    574.62x = 452,919.95
  5. Step 5: Solve for x
    x = 452,919.95/574.62
  6. Step 6: Final answer
    x = 788.21

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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.