Home / 764,784.30-1,147,176.45-366,203.55

Finding the Fourth Proportional to 764,784.30, 1,147,176.45 and 366,203.55

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Solution

The fourth proportional to 764,784.30, 1,147,176.45 and 366,203.55 is: 549,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,784.30 : 1,147,176.45 = 366,203.55 : x
  2. Step 2: Convert to fraction form
    764,784.30/1,147,176.45 = 366,203.55/x
  3. Step 3: Cross multiply
    764,784.30x = 1,147,176.45 × 366,203.55
  4. Step 4: Simplify right side
    764,784.30x = 420,100,088,466.40
  5. Step 5: Solve for x
    x = 420,100,088,466.40/764,784.30
  6. Step 6: Final answer
    x = 549,305.33

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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.