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Finding the Fourth Proportional to 632,369.84, 872,651.88 and 345,883.77

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Solution

The fourth proportional to 632,369.84, 872,651.88 and 345,883.77 is: 477,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,369.84 : 872,651.88 = 345,883.77 : x
  2. Step 2: Convert to fraction form
    632,369.84/872,651.88 = 345,883.77/x
  3. Step 3: Cross multiply
    632,369.84x = 872,651.88 × 345,883.77
  4. Step 4: Simplify right side
    632,369.84x = 301,836,122,151.99
  5. Step 5: Solve for x
    x = 301,836,122,151.99/632,369.84
  6. Step 6: Final answer
    x = 477,309.49

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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.