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Finding the Fourth Proportional to 492,850.79, 680,165.82 and 277,986.23

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Solution

The fourth proportional to 492,850.79, 680,165.82 and 277,986.23 is: 383,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,850.79 : 680,165.82 = 277,986.23 : x
  2. Step 2: Convert to fraction form
    492,850.79/680,165.82 = 277,986.23/x
  3. Step 3: Cross multiply
    492,850.79x = 680,165.82 × 277,986.23
  4. Step 4: Simplify right side
    492,850.79x = 189,076,728,675.83
  5. Step 5: Solve for x
    x = 189,076,728,675.83/492,850.79
  6. Step 6: Final answer
    x = 383,638.89

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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.