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Finding the Fourth Proportional to 554.57, 832.42 and 458.07

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Solution

The fourth proportional to 554.57, 832.42 and 458.07 is: 687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.57 : 832.42 = 458.07 : x
  2. Step 2: Convert to fraction form
    554.57/832.42 = 458.07/x
  3. Step 3: Cross multiply
    554.57x = 832.42 × 458.07
  4. Step 4: Simplify right side
    554.57x = 381,306.63
  5. Step 5: Solve for x
    x = 381,306.63/554.57
  6. Step 6: Final answer
    x = 687.57

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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.