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Finding the Fourth Proportional to 608.28, 913.64 and 554.02

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Solution

The fourth proportional to 608.28, 913.64 and 554.02 is: 832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.28 : 913.64 = 554.02 : x
  2. Step 2: Convert to fraction form
    608.28/913.64 = 554.02/x
  3. Step 3: Cross multiply
    608.28x = 913.64 × 554.02
  4. Step 4: Simplify right side
    608.28x = 506,174.83
  5. Step 5: Solve for x
    x = 506,174.83/608.28
  6. Step 6: Final answer
    x = 832.14

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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.