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Finding the Fourth Proportional to 492,813.52, 680,054.74 and 277,940.77

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Solution

The fourth proportional to 492,813.52, 680,054.74 and 277,940.77 is: 383,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,813.52 : 680,054.74 = 277,940.77 : x
  2. Step 2: Convert to fraction form
    492,813.52/680,054.74 = 277,940.77/x
  3. Step 3: Cross multiply
    492,813.52x = 680,054.74 × 277,940.77
  4. Step 4: Simplify right side
    492,813.52x = 189,014,935,682.76
  5. Step 5: Solve for x
    x = 189,014,935,682.76/492,813.52
  6. Step 6: Final answer
    x = 383,542.51

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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.