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Finding the Fourth Proportional to 634.99, 876.54 and 373.09

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Solution

The fourth proportional to 634.99, 876.54 and 373.09 is: 515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.99 : 876.54 = 373.09 : x
  2. Step 2: Convert to fraction form
    634.99/876.54 = 373.09/x
  3. Step 3: Cross multiply
    634.99x = 876.54 × 373.09
  4. Step 4: Simplify right side
    634.99x = 327,028.31
  5. Step 5: Solve for x
    x = 327,028.31/634.99
  6. Step 6: Final answer
    x = 515.01

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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.