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Finding the Fourth Proportional to 417,528.90, 626,276.34 and 192,815.46

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Solution

The fourth proportional to 417,528.90, 626,276.34 and 192,815.46 is: 289,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,528.90 : 626,276.34 = 192,815.46 : x
  2. Step 2: Convert to fraction form
    417,528.90/626,276.34 = 192,815.46/x
  3. Step 3: Cross multiply
    417,528.90x = 626,276.34 × 192,815.46
  4. Step 4: Simplify right side
    417,528.90x = 120,755,760,584.22
  5. Step 5: Solve for x
    x = 120,755,760,584.22/417,528.90
  6. Step 6: Final answer
    x = 289,215.33

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