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Finding the Fourth Proportional to 656.93, 906.74 and 460.49

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Solution

The fourth proportional to 656.93, 906.74 and 460.49 is: 635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.93 : 906.74 = 460.49 : x
  2. Step 2: Convert to fraction form
    656.93/906.74 = 460.49/x
  3. Step 3: Cross multiply
    656.93x = 906.74 × 460.49
  4. Step 4: Simplify right side
    656.93x = 417,541.32
  5. Step 5: Solve for x
    x = 417,541.32/656.93
  6. Step 6: Final answer
    x = 635.60

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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.