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Finding the Fourth Proportional to 524.94, 787.61 and 490.11

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Solution

The fourth proportional to 524.94, 787.61 and 490.11 is: 735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.94 : 787.61 = 490.11 : x
  2. Step 2: Convert to fraction form
    524.94/787.61 = 490.11/x
  3. Step 3: Cross multiply
    524.94x = 787.61 × 490.11
  4. Step 4: Simplify right side
    524.94x = 386,015.54
  5. Step 5: Solve for x
    x = 386,015.54/524.94
  6. Step 6: Final answer
    x = 735.35

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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.