Home / 628,327.20-942,145.20-273,280.80

Finding the Fourth Proportional to 628,327.20, 942,145.20 and 273,280.80

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Solution

The fourth proportional to 628,327.20, 942,145.20 and 273,280.80 is: 409,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,327.20 : 942,145.20 = 273,280.80 : x
  2. Step 2: Convert to fraction form
    628,327.20/942,145.20 = 273,280.80/x
  3. Step 3: Cross multiply
    628,327.20x = 942,145.20 × 273,280.80
  4. Step 4: Simplify right side
    628,327.20x = 257,470,193,972.16
  5. Step 5: Solve for x
    x = 257,470,193,972.16/628,327.20
  6. Step 6: Final answer
    x = 409,770.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.