Home / 491,679.14-678,529.98-276,827.04

Finding the Fourth Proportional to 491,679.14, 678,529.98 and 276,827.04

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Solution

The fourth proportional to 491,679.14, 678,529.98 and 276,827.04 is: 382,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,679.14 : 678,529.98 = 276,827.04 : x
  2. Step 2: Convert to fraction form
    491,679.14/678,529.98 = 276,827.04/x
  3. Step 3: Cross multiply
    491,679.14x = 678,529.98 × 276,827.04
  4. Step 4: Simplify right side
    491,679.14x = 187,835,445,914.66
  5. Step 5: Solve for x
    x = 187,835,445,914.66/491,679.14
  6. Step 6: Final answer
    x = 382,028.51

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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.