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Finding the Fourth Proportional to 492,842.58, 680,107.50 and 277,979.55

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Solution

The fourth proportional to 492,842.58, 680,107.50 and 277,979.55 is: 383,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,842.58 : 680,107.50 = 277,979.55 : x
  2. Step 2: Convert to fraction form
    492,842.58/680,107.50 = 277,979.55/x
  3. Step 3: Cross multiply
    492,842.58x = 680,107.50 × 277,979.55
  4. Step 4: Simplify right side
    492,842.58x = 189,055,976,801.63
  5. Step 5: Solve for x
    x = 189,055,976,801.63/492,842.58
  6. Step 6: Final answer
    x = 383,603.17

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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.