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Finding the Fourth Proportional to 492,773.80, 680,026.10 and 277,912.60

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Solution

The fourth proportional to 492,773.80, 680,026.10 and 277,912.60 is: 383,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,773.80 : 680,026.10 = 277,912.60 : x
  2. Step 2: Convert to fraction form
    492,773.80/680,026.10 = 277,912.60/x
  3. Step 3: Cross multiply
    492,773.80x = 680,026.10 × 277,912.60
  4. Step 4: Simplify right side
    492,773.80x = 188,987,821,518.86
  5. Step 5: Solve for x
    x = 188,987,821,518.86/492,773.80
  6. Step 6: Final answer
    x = 383,518.40

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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.