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Finding the Fourth Proportional to 550,439.74, 825,716.29 and 190,609.89

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Solution

The fourth proportional to 550,439.74, 825,716.29 and 190,609.89 is: 285,934.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,439.74 : 825,716.29 = 190,609.89 : x
  2. Step 2: Convert to fraction form
    550,439.74/825,716.29 = 190,609.89/x
  3. Step 3: Cross multiply
    550,439.74x = 825,716.29 × 190,609.89
  4. Step 4: Simplify right side
    550,439.74x = 157,389,693,173.01
  5. Step 5: Solve for x
    x = 157,389,693,173.01/550,439.74
  6. Step 6: Final answer
    x = 285,934.47

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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.