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Finding the Fourth Proportional to 449,698.40, 620,591.94 and 245,757.95

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Solution

The fourth proportional to 449,698.40, 620,591.94 and 245,757.95 is: 339,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,698.40 : 620,591.94 = 245,757.95 : x
  2. Step 2: Convert to fraction form
    449,698.40/620,591.94 = 245,757.95/x
  3. Step 3: Cross multiply
    449,698.40x = 620,591.94 × 245,757.95
  4. Step 4: Simplify right side
    449,698.40x = 152,515,402,960.92
  5. Step 5: Solve for x
    x = 152,515,402,960.92/449,698.40
  6. Step 6: Final answer
    x = 339,150.42

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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.