Home / 764,276.44-1,146,425.42-290,987.64

Finding the Fourth Proportional to 764,276.44, 1,146,425.42 and 290,987.64

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Solution

The fourth proportional to 764,276.44, 1,146,425.42 and 290,987.64 is: 436,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,276.44 : 1,146,425.42 = 290,987.64 : x
  2. Step 2: Convert to fraction form
    764,276.44/1,146,425.42 = 290,987.64/x
  3. Step 3: Cross multiply
    764,276.44x = 1,146,425.42 × 290,987.64
  4. Step 4: Simplify right side
    764,276.44x = 333,595,627,401.81
  5. Step 5: Solve for x
    x = 333,595,627,401.81/764,276.44
  6. Step 6: Final answer
    x = 436,485.56

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Double scale
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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.