Home / 449,515.20-620,339.94-245,574.30

Finding the Fourth Proportional to 449,515.20, 620,339.94 and 245,574.30

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Solution

The fourth proportional to 449,515.20, 620,339.94 and 245,574.30 is: 338,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,515.20 : 620,339.94 = 245,574.30 : x
  2. Step 2: Convert to fraction form
    449,515.20/620,339.94 = 245,574.30/x
  3. Step 3: Cross multiply
    449,515.20x = 620,339.94 × 245,574.30
  4. Step 4: Simplify right side
    449,515.20x = 152,339,546,527.54
  5. Step 5: Solve for x
    x = 152,339,546,527.54/449,515.20
  6. Step 6: Final answer
    x = 338,897.43

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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.