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Finding the Fourth Proportional to 449,468.81, 620,269.07 and 245,522.55

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Solution

The fourth proportional to 449,468.81, 620,269.07 and 245,522.55 is: 338,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,468.81 : 620,269.07 = 245,522.55 : x
  2. Step 2: Convert to fraction form
    449,468.81/620,269.07 = 245,522.55/x
  3. Step 3: Cross multiply
    449,468.81x = 620,269.07 × 245,522.55
  4. Step 4: Simplify right side
    449,468.81x = 152,290,042,524.92
  5. Step 5: Solve for x
    x = 152,290,042,524.92/449,468.81
  6. Step 6: Final answer
    x = 338,822.27

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1.5x scale

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.