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Finding the Fourth Proportional to 626,967.60, 940,516.92 and 206,276.64

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Solution

The fourth proportional to 626,967.60, 940,516.92 and 206,276.64 is: 309,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,967.60 : 940,516.92 = 206,276.64 : x
  2. Step 2: Convert to fraction form
    626,967.60/940,516.92 = 206,276.64/x
  3. Step 3: Cross multiply
    626,967.60x = 940,516.92 × 206,276.64
  4. Step 4: Simplify right side
    626,967.60x = 194,006,670,120.75
  5. Step 5: Solve for x
    x = 194,006,670,120.75/626,967.60
  6. Step 6: Final answer
    x = 309,436.52

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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.