Home / 510,738.40-764,241.28-300,475.36

Finding the Fourth Proportional to 510,738.40, 764,241.28 and 300,475.36

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Solution

The fourth proportional to 510,738.40, 764,241.28 and 300,475.36 is: 449,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,738.40 : 764,241.28 = 300,475.36 : x
  2. Step 2: Convert to fraction form
    510,738.40/764,241.28 = 300,475.36/x
  3. Step 3: Cross multiply
    510,738.40x = 764,241.28 × 300,475.36
  4. Step 4: Simplify right side
    510,738.40x = 229,635,673,734.86
  5. Step 5: Solve for x
    x = 229,635,673,734.86/510,738.40
  6. Step 6: Final answer
    x = 449,615.05

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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.