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Finding the Fourth Proportional to 629,722.75, 869,017.63 and 357,791.00

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Solution

The fourth proportional to 629,722.75, 869,017.63 and 357,791.00 is: 493,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,722.75 : 869,017.63 = 357,791.00 : x
  2. Step 2: Convert to fraction form
    629,722.75/869,017.63 = 357,791.00/x
  3. Step 3: Cross multiply
    629,722.75x = 869,017.63 × 357,791.00
  4. Step 4: Simplify right side
    629,722.75x = 310,926,684,874.58
  5. Step 5: Solve for x
    x = 310,926,684,874.58/629,722.75
  6. Step 6: Final answer
    x = 493,751.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.