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Finding the Fourth Proportional to 689,562.79, 950,990.97 and 482,725.24

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Solution

The fourth proportional to 689,562.79, 950,990.97 and 482,725.24 is: 665,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,562.79 : 950,990.97 = 482,725.24 : x
  2. Step 2: Convert to fraction form
    689,562.79/950,990.97 = 482,725.24/x
  3. Step 3: Cross multiply
    689,562.79x = 950,990.97 × 482,725.24
  4. Step 4: Simplify right side
    689,562.79x = 459,067,344,231.08
  5. Step 5: Solve for x
    x = 459,067,344,231.08/689,562.79
  6. Step 6: Final answer
    x = 665,736.83

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Double scale
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Similar ratio
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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.