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Finding the Fourth Proportional to 626.24, 935.20 and 619.46

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Solution

The fourth proportional to 626.24, 935.20 and 619.46 is: 925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.24 : 935.20 = 619.46 : x
  2. Step 2: Convert to fraction form
    626.24/935.20 = 619.46/x
  3. Step 3: Cross multiply
    626.24x = 935.20 × 619.46
  4. Step 4: Simplify right side
    626.24x = 579,318.99
  5. Step 5: Solve for x
    x = 579,318.99/626.24
  6. Step 6: Final answer
    x = 925.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.