Home / 764,660.76-1,055,214.60-415,793.64

Finding the Fourth Proportional to 764,660.76, 1,055,214.60 and 415,793.64

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Solution

The fourth proportional to 764,660.76, 1,055,214.60 and 415,793.64 is: 573,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,660.76 : 1,055,214.60 = 415,793.64 : x
  2. Step 2: Convert to fraction form
    764,660.76/1,055,214.60 = 415,793.64/x
  3. Step 3: Cross multiply
    764,660.76x = 1,055,214.60 × 415,793.64
  4. Step 4: Simplify right side
    764,660.76x = 438,751,519,515.14
  5. Step 5: Solve for x
    x = 438,751,519,515.14/764,660.76
  6. Step 6: Final answer
    x = 573,785.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.