Home / 491,623.29-678,504.87-276,805.35

Finding the Fourth Proportional to 491,623.29, 678,504.87 and 276,805.35

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Solution

The fourth proportional to 491,623.29, 678,504.87 and 276,805.35 is: 382,027.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,623.29 : 678,504.87 = 276,805.35 : x
  2. Step 2: Convert to fraction form
    491,623.29/678,504.87 = 276,805.35/x
  3. Step 3: Cross multiply
    491,623.29x = 678,504.87 × 276,805.35
  4. Step 4: Simplify right side
    491,623.29x = 187,813,778,017.05
  5. Step 5: Solve for x
    x = 187,813,778,017.05/491,623.29
  6. Step 6: Final answer
    x = 382,027.83

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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.