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Finding the Fourth Proportional to 492,425.45, 680,107.35 and 331,000.14

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Solution

The fourth proportional to 492,425.45, 680,107.35 and 331,000.14 is: 457,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,425.45 : 680,107.35 = 331,000.14 : x
  2. Step 2: Convert to fraction form
    492,425.45/680,107.35 = 331,000.14/x
  3. Step 3: Cross multiply
    492,425.45x = 680,107.35 × 331,000.14
  4. Step 4: Simplify right side
    492,425.45x = 225,115,628,065.03
  5. Step 5: Solve for x
    x = 225,115,628,065.03/492,425.45
  6. Step 6: Final answer
    x = 457,156.77

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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.