Home / 1,213,624.20-1,821,933.90-764,344.20

Finding the Fourth Proportional to 1,213,624.20, 1,821,933.90 and 764,344.20

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Solution

The fourth proportional to 1,213,624.20, 1,821,933.90 and 764,344.20 is: 1,147,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,624.20 : 1,821,933.90 = 764,344.20 : x
  2. Step 2: Convert to fraction form
    1,213,624.20/1,821,933.90 = 764,344.20/x
  3. Step 3: Cross multiply
    1,213,624.20x = 1,821,933.90 × 764,344.20
  4. Step 4: Simplify right side
    1,213,624.20x = 1,392,584,609,248.38
  5. Step 5: Solve for x
    x = 1,392,584,609,248.38/1,213,624.20
  6. Step 6: Final answer
    x = 1,147,459.49

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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.