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Finding the Fourth Proportional to 498,358.90, 687,496.17 and 362,181.70

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Solution

The fourth proportional to 498,358.90, 687,496.17 and 362,181.70 is: 499,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,358.90 : 687,496.17 = 362,181.70 : x
  2. Step 2: Convert to fraction form
    498,358.90/687,496.17 = 362,181.70/x
  3. Step 3: Cross multiply
    498,358.90x = 687,496.17 × 362,181.70
  4. Step 4: Simplify right side
    498,358.90x = 248,998,531,594.09
  5. Step 5: Solve for x
    x = 248,998,531,594.09/498,358.90
  6. Step 6: Final answer
    x = 499,636.97

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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.