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Finding the Fourth Proportional to 670.90, 925.10 and 504.80

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Solution

The fourth proportional to 670.90, 925.10 and 504.80 is: 696.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.90 : 925.10 = 504.80 : x
  2. Step 2: Convert to fraction form
    670.90/925.10 = 504.80/x
  3. Step 3: Cross multiply
    670.90x = 925.10 × 504.80
  4. Step 4: Simplify right side
    670.90x = 466,990.48
  5. Step 5: Solve for x
    x = 466,990.48/670.90
  6. Step 6: Final answer
    x = 696.07

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