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Finding the Fourth Proportional to 609.96, 910.54 and 583.36

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Solution

The fourth proportional to 609.96, 910.54 and 583.36 is: 870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.96 : 910.54 = 583.36 : x
  2. Step 2: Convert to fraction form
    609.96/910.54 = 583.36/x
  3. Step 3: Cross multiply
    609.96x = 910.54 × 583.36
  4. Step 4: Simplify right side
    609.96x = 531,172.61
  5. Step 5: Solve for x
    x = 531,172.61/609.96
  6. Step 6: Final answer
    x = 870.83

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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.