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Finding the Fourth Proportional to 503.40, 695.46 and 452.20

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Solution

The fourth proportional to 503.40, 695.46 and 452.20 is: 624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.40 : 695.46 = 452.20 : x
  2. Step 2: Convert to fraction form
    503.40/695.46 = 452.20/x
  3. Step 3: Cross multiply
    503.40x = 695.46 × 452.20
  4. Step 4: Simplify right side
    503.40x = 314,487.01
  5. Step 5: Solve for x
    x = 314,487.01/503.40
  6. Step 6: Final answer
    x = 624.73

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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.