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Finding the Fourth Proportional to 491,073.23, 677,681.22 and 276,213.44

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Solution

The fourth proportional to 491,073.23, 677,681.22 and 276,213.44 is: 381,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,073.23 : 677,681.22 = 276,213.44 : x
  2. Step 2: Convert to fraction form
    491,073.23/677,681.22 = 276,213.44/x
  3. Step 3: Cross multiply
    491,073.23x = 677,681.22 × 276,213.44
  4. Step 4: Simplify right side
    491,073.23x = 187,184,656,230.12
  5. Step 5: Solve for x
    x = 187,184,656,230.12/491,073.23
  6. Step 6: Final answer
    x = 381,174.63

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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.