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Finding the Fourth Proportional to 491,614.38, 678,492.52 and 276,796.32

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Solution

The fourth proportional to 491,614.38, 678,492.52 and 276,796.32 is: 382,015.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,614.38 : 678,492.52 = 276,796.32 : x
  2. Step 2: Convert to fraction form
    491,614.38/678,492.52 = 276,796.32/x
  3. Step 3: Cross multiply
    491,614.38x = 678,492.52 × 276,796.32
  4. Step 4: Simplify right side
    491,614.38x = 187,804,232,683.53
  5. Step 5: Solve for x
    x = 187,804,232,683.53/491,614.38
  6. Step 6: Final answer
    x = 382,015.34

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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.