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Finding the Fourth Proportional to 624.02, 935.48 and 393.03

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Solution

The fourth proportional to 624.02, 935.48 and 393.03 is: 589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.02 : 935.48 = 393.03 : x
  2. Step 2: Convert to fraction form
    624.02/935.48 = 393.03/x
  3. Step 3: Cross multiply
    624.02x = 935.48 × 393.03
  4. Step 4: Simplify right side
    624.02x = 367,669.74
  5. Step 5: Solve for x
    x = 367,669.74/624.02
  6. Step 6: Final answer
    x = 589.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.