Home / 764,007.40-1,146,011.10-681,338.80

Finding the Fourth Proportional to 764,007.40, 1,146,011.10 and 681,338.80

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Solution

The fourth proportional to 764,007.40, 1,146,011.10 and 681,338.80 is: 1,022,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,007.40 : 1,146,011.10 = 681,338.80 : x
  2. Step 2: Convert to fraction form
    764,007.40/1,146,011.10 = 681,338.80/x
  3. Step 3: Cross multiply
    764,007.40x = 1,146,011.10 × 681,338.80
  4. Step 4: Simplify right side
    764,007.40x = 780,821,827,660.68
  5. Step 5: Solve for x
    x = 780,821,827,660.68/764,007.40
  6. Step 6: Final answer
    x = 1,022,008.20

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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.