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Finding the Fourth Proportional to 449,701.46, 620,563.65 and 248,484.50

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Solution

The fourth proportional to 449,701.46, 620,563.65 and 248,484.50 is: 342,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,701.46 : 620,563.65 = 248,484.50 : x
  2. Step 2: Convert to fraction form
    449,701.46/620,563.65 = 248,484.50/x
  3. Step 3: Cross multiply
    449,701.46x = 620,563.65 × 248,484.50
  4. Step 4: Simplify right side
    449,701.46x = 154,200,448,288.43
  5. Step 5: Solve for x
    x = 154,200,448,288.43/449,701.46
  6. Step 6: Final answer
    x = 342,895.15

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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.