Home / 764,986.10-1,147,151.10-385,760.30

Finding the Fourth Proportional to 764,986.10, 1,147,151.10 and 385,760.30

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Solution

The fourth proportional to 764,986.10, 1,147,151.10 and 385,760.30 is: 578,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,986.10 : 1,147,151.10 = 385,760.30 : x
  2. Step 2: Convert to fraction form
    764,986.10/1,147,151.10 = 385,760.30/x
  3. Step 3: Cross multiply
    764,986.10x = 1,147,151.10 × 385,760.30
  4. Step 4: Simplify right side
    764,986.10x = 442,525,352,481.33
  5. Step 5: Solve for x
    x = 442,525,352,481.33/764,986.10
  6. Step 6: Final answer
    x = 578,475.02

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1.5x scale

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.