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Finding the Fourth Proportional to 410,722.22, 615,224.72 and 330,325.68

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Solution

The fourth proportional to 410,722.22, 615,224.72 and 330,325.68 is: 494,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,722.22 : 615,224.72 = 330,325.68 : x
  2. Step 2: Convert to fraction form
    410,722.22/615,224.72 = 330,325.68/x
  3. Step 3: Cross multiply
    410,722.22x = 615,224.72 × 330,325.68
  4. Step 4: Simplify right side
    410,722.22x = 203,224,523,986.81
  5. Step 5: Solve for x
    x = 203,224,523,986.81/410,722.22
  6. Step 6: Final answer
    x = 494,797.98

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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.