Home / 491,506.04-678,278.21-276,647.27

Finding the Fourth Proportional to 491,506.04, 678,278.21 and 276,647.27

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Solution

The fourth proportional to 491,506.04, 678,278.21 and 276,647.27 is: 381,773.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,506.04 : 678,278.21 = 276,647.27 : x
  2. Step 2: Convert to fraction form
    491,506.04/678,278.21 = 276,647.27/x
  3. Step 3: Cross multiply
    491,506.04x = 678,278.21 × 276,647.27
  4. Step 4: Simplify right side
    491,506.04x = 187,643,810,322.36
  5. Step 5: Solve for x
    x = 187,643,810,322.36/491,506.04
  6. Step 6: Final answer
    x = 381,773.15

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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.