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Finding the Fourth Proportional to 454,245.90, 680,785.65 and 348,540.90

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Solution

The fourth proportional to 454,245.90, 680,785.65 and 348,540.90 is: 522,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,245.90 : 680,785.65 = 348,540.90 : x
  2. Step 2: Convert to fraction form
    454,245.90/680,785.65 = 348,540.90/x
  3. Step 3: Cross multiply
    454,245.90x = 680,785.65 × 348,540.90
  4. Step 4: Simplify right side
    454,245.90x = 237,281,643,158.09
  5. Step 5: Solve for x
    x = 237,281,643,158.09/454,245.90
  6. Step 6: Final answer
    x = 522,363.86

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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.