Home / 449,517.02-620,355.63-255,928.57

Finding the Fourth Proportional to 449,517.02, 620,355.63 and 255,928.57

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Solution

The fourth proportional to 449,517.02, 620,355.63 and 255,928.57 is: 353,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,517.02 : 620,355.63 = 255,928.57 : x
  2. Step 2: Convert to fraction form
    449,517.02/620,355.63 = 255,928.57/x
  3. Step 3: Cross multiply
    449,517.02x = 620,355.63 × 255,928.57
  4. Step 4: Simplify right side
    449,517.02x = 158,766,729,277.35
  5. Step 5: Solve for x
    x = 158,766,729,277.35/449,517.02
  6. Step 6: Final answer
    x = 353,194.03

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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.