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Finding the Fourth Proportional to 632,340.85, 872,651.25 and 345,860.95

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Solution

The fourth proportional to 632,340.85, 872,651.25 and 345,860.95 is: 477,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,340.85 : 872,651.25 = 345,860.95 : x
  2. Step 2: Convert to fraction form
    632,340.85/872,651.25 = 345,860.95/x
  3. Step 3: Cross multiply
    632,340.85x = 872,651.25 × 345,860.95
  4. Step 4: Simplify right side
    632,340.85x = 301,815,990,343.69
  5. Step 5: Solve for x
    x = 301,815,990,343.69/632,340.85
  6. Step 6: Final answer
    x = 477,299.53

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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.