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Finding the Fourth Proportional to 666.06, 917.26 and 651.75

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Solution

The fourth proportional to 666.06, 917.26 and 651.75 is: 897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.06 : 917.26 = 651.75 : x
  2. Step 2: Convert to fraction form
    666.06/917.26 = 651.75/x
  3. Step 3: Cross multiply
    666.06x = 917.26 × 651.75
  4. Step 4: Simplify right side
    666.06x = 597,819.14
  5. Step 5: Solve for x
    x = 597,819.14/666.06
  6. Step 6: Final answer
    x = 897.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.