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Finding the Fourth Proportional to 656.98, 906.29 and 435.54

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Solution

The fourth proportional to 656.98, 906.29 and 435.54 is: 600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.98 : 906.29 = 435.54 : x
  2. Step 2: Convert to fraction form
    656.98/906.29 = 435.54/x
  3. Step 3: Cross multiply
    656.98x = 906.29 × 435.54
  4. Step 4: Simplify right side
    656.98x = 394,728.40
  5. Step 5: Solve for x
    x = 394,728.40/656.98
  6. Step 6: Final answer
    x = 600.82

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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.