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Finding the Fourth Proportional to 574.80, 794.76 and 501.90

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Solution

The fourth proportional to 574.80, 794.76 and 501.90 is: 693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.80 : 794.76 = 501.90 : x
  2. Step 2: Convert to fraction form
    574.80/794.76 = 501.90/x
  3. Step 3: Cross multiply
    574.80x = 794.76 × 501.90
  4. Step 4: Simplify right side
    574.80x = 398,890.04
  5. Step 5: Solve for x
    x = 398,890.04/574.80
  6. Step 6: Final answer
    x = 693.96

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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.