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Finding the Fourth Proportional to 609.28, 907.50 and 554.20

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Solution

The fourth proportional to 609.28, 907.50 and 554.20 is: 825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.28 : 907.50 = 554.20 : x
  2. Step 2: Convert to fraction form
    609.28/907.50 = 554.20/x
  3. Step 3: Cross multiply
    609.28x = 907.50 × 554.20
  4. Step 4: Simplify right side
    609.28x = 502,936.50
  5. Step 5: Solve for x
    x = 502,936.50/609.28
  6. Step 6: Final answer
    x = 825.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.