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Finding the Fourth Proportional to 492,135.35, 679,143.69 and 277,344.41

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Solution

The fourth proportional to 492,135.35, 679,143.69 and 277,344.41 is: 382,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,135.35 : 679,143.69 = 277,344.41 : x
  2. Step 2: Convert to fraction form
    492,135.35/679,143.69 = 277,344.41/x
  3. Step 3: Cross multiply
    492,135.35x = 679,143.69 × 277,344.41
  4. Step 4: Simplify right side
    492,135.35x = 188,356,702,612.55
  5. Step 5: Solve for x
    x = 188,356,702,612.55/492,135.35
  6. Step 6: Final answer
    x = 382,733.54

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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.