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Finding the Fourth Proportional to 632,380.17, 872,674.38 and 345,897.75

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Solution

The fourth proportional to 632,380.17, 872,674.38 and 345,897.75 is: 477,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,380.17 : 872,674.38 = 345,897.75 : x
  2. Step 2: Convert to fraction form
    632,380.17/872,674.38 = 345,897.75/x
  3. Step 3: Cross multiply
    632,380.17x = 872,674.38 × 345,897.75
  4. Step 4: Simplify right side
    632,380.17x = 301,856,104,524.65
  5. Step 5: Solve for x
    x = 301,856,104,524.65/632,380.17
  6. Step 6: Final answer
    x = 477,333.29

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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.