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Finding the Fourth Proportional to 635.06, 945.09 and 612.02

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Solution

The fourth proportional to 635.06, 945.09 and 612.02 is: 910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.06 : 945.09 = 612.02 : x
  2. Step 2: Convert to fraction form
    635.06/945.09 = 612.02/x
  3. Step 3: Cross multiply
    635.06x = 945.09 × 612.02
  4. Step 4: Simplify right side
    635.06x = 578,410.92
  5. Step 5: Solve for x
    x = 578,410.92/635.06
  6. Step 6: Final answer
    x = 910.80

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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.