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Finding the Fourth Proportional to 603.49, 832.12 and 492.63

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Solution

The fourth proportional to 603.49, 832.12 and 492.63 is: 679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.49 : 832.12 = 492.63 : x
  2. Step 2: Convert to fraction form
    603.49/832.12 = 492.63/x
  3. Step 3: Cross multiply
    603.49x = 832.12 × 492.63
  4. Step 4: Simplify right side
    603.49x = 409,927.28
  5. Step 5: Solve for x
    x = 409,927.28/603.49
  6. Step 6: Final answer
    x = 679.26

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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.