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Finding the Fourth Proportional to 492,851.96, 680,120.44 and 277,988.92

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Solution

The fourth proportional to 492,851.96, 680,120.44 and 277,988.92 is: 383,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,851.96 : 680,120.44 = 277,988.92 : x
  2. Step 2: Convert to fraction form
    492,851.96/680,120.44 = 277,988.92/x
  3. Step 3: Cross multiply
    492,851.96x = 680,120.44 × 277,988.92
  4. Step 4: Simplify right side
    492,851.96x = 189,065,946,585.53
  5. Step 5: Solve for x
    x = 189,065,946,585.53/492,851.96
  6. Step 6: Final answer
    x = 383,616.10

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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.