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Finding the Fourth Proportional to 492,840.96, 680,094.72 and 277,981.44

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Solution

The fourth proportional to 492,840.96, 680,094.72 and 277,981.44 is: 383,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,840.96 : 680,094.72 = 277,981.44 : x
  2. Step 2: Convert to fraction form
    492,840.96/680,094.72 = 277,981.44/x
  3. Step 3: Cross multiply
    492,840.96x = 680,094.72 × 277,981.44
  4. Step 4: Simplify right side
    492,840.96x = 189,053,709,602.00
  5. Step 5: Solve for x
    x = 189,053,709,602.00/492,840.96
  6. Step 6: Final answer
    x = 383,599.83

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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.