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Finding the Fourth Proportional to 449,846.94, 620,788.74 and 245,898.72

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Solution

The fourth proportional to 449,846.94, 620,788.74 and 245,898.72 is: 339,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,846.94 : 620,788.74 = 245,898.72 : x
  2. Step 2: Convert to fraction form
    449,846.94/620,788.74 = 245,898.72/x
  3. Step 3: Cross multiply
    449,846.94x = 620,788.74 × 245,898.72
  4. Step 4: Simplify right side
    449,846.94x = 152,651,156,556.41
  5. Step 5: Solve for x
    x = 152,651,156,556.41/449,846.94
  6. Step 6: Final answer
    x = 339,340.21

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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.