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Finding the Fourth Proportional to 464.68, 695.82 and 419.32

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Solution

The fourth proportional to 464.68, 695.82 and 419.32 is: 627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.68 : 695.82 = 419.32 : x
  2. Step 2: Convert to fraction form
    464.68/695.82 = 419.32/x
  3. Step 3: Cross multiply
    464.68x = 695.82 × 419.32
  4. Step 4: Simplify right side
    464.68x = 291,771.24
  5. Step 5: Solve for x
    x = 291,771.24/464.68
  6. Step 6: Final answer
    x = 627.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.