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Finding the Fourth Proportional to 609.36, 910.02 and 499.84

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Solution

The fourth proportional to 609.36, 910.02 and 499.84 is: 746.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.36 : 910.02 = 499.84 : x
  2. Step 2: Convert to fraction form
    609.36/910.02 = 499.84/x
  3. Step 3: Cross multiply
    609.36x = 910.02 × 499.84
  4. Step 4: Simplify right side
    609.36x = 454,864.40
  5. Step 5: Solve for x
    x = 454,864.40/609.36
  6. Step 6: Final answer
    x = 746.46

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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.