Home / 764,459.16-1,147,004.46-385,174.92

Finding the Fourth Proportional to 764,459.16, 1,147,004.46 and 385,174.92

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Solution

The fourth proportional to 764,459.16, 1,147,004.46 and 385,174.92 is: 577,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,459.16 : 1,147,004.46 = 385,174.92 : x
  2. Step 2: Convert to fraction form
    764,459.16/1,147,004.46 = 385,174.92/x
  3. Step 3: Cross multiply
    764,459.16x = 1,147,004.46 × 385,174.92
  4. Step 4: Simplify right side
    764,459.16x = 441,797,351,120.14
  5. Step 5: Solve for x
    x = 441,797,351,120.14/764,459.16
  6. Step 6: Final answer
    x = 577,921.46

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Double scale
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Similar ratio
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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.