Home / 764,047.20-1,144,495.76-447,544.56

Finding the Fourth Proportional to 764,047.20, 1,144,495.76 and 447,544.56

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Solution

The fourth proportional to 764,047.20, 1,144,495.76 and 447,544.56 is: 670,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,047.20 : 1,144,495.76 = 447,544.56 : x
  2. Step 2: Convert to fraction form
    764,047.20/1,144,495.76 = 447,544.56/x
  3. Step 3: Cross multiply
    764,047.20x = 1,144,495.76 × 447,544.56
  4. Step 4: Simplify right side
    764,047.20x = 512,212,851,331.07
  5. Step 5: Solve for x
    x = 512,212,851,331.07/764,047.20
  6. Step 6: Final answer
    x = 670,394.25

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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.