Home / 491,302.18-677,995.62-276,442.27

Finding the Fourth Proportional to 491,302.18, 677,995.62 and 276,442.27

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Solution

The fourth proportional to 491,302.18, 677,995.62 and 276,442.27 is: 381,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,302.18 : 677,995.62 = 276,442.27 : x
  2. Step 2: Convert to fraction form
    491,302.18/677,995.62 = 276,442.27/x
  3. Step 3: Cross multiply
    491,302.18x = 677,995.62 × 276,442.27
  4. Step 4: Simplify right side
    491,302.18x = 187,426,645,511.21
  5. Step 5: Solve for x
    x = 187,426,645,511.21/491,302.18
  6. Step 6: Final answer
    x = 381,489.54

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1.5x scale

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.