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Finding the Fourth Proportional to 492,625.11, 680,132.93 and 377,690.64

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Solution

The fourth proportional to 492,625.11, 680,132.93 and 377,690.64 is: 521,450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,625.11 : 680,132.93 = 377,690.64 : x
  2. Step 2: Convert to fraction form
    492,625.11/680,132.93 = 377,690.64/x
  3. Step 3: Cross multiply
    492,625.11x = 680,132.93 × 377,690.64
  4. Step 4: Simplify right side
    492,625.11x = 256,879,841,616.78
  5. Step 5: Solve for x
    x = 256,879,841,616.78/492,625.11
  6. Step 6: Final answer
    x = 521,450.97

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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.