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Finding the Fourth Proportional to 459,107.56, 687,622.62 and 245,498.20

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Solution

The fourth proportional to 459,107.56, 687,622.62 and 245,498.20 is: 367,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,107.56 : 687,622.62 = 245,498.20 : x
  2. Step 2: Convert to fraction form
    459,107.56/687,622.62 = 245,498.20/x
  3. Step 3: Cross multiply
    459,107.56x = 687,622.62 × 245,498.20
  4. Step 4: Simplify right side
    459,107.56x = 168,810,115,489.28
  5. Step 5: Solve for x
    x = 168,810,115,489.28/459,107.56
  6. Step 6: Final answer
    x = 367,691.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.