Home / 821,665.60-1,232,613.60-322,913.60

Finding the Fourth Proportional to 821,665.60, 1,232,613.60 and 322,913.60

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Solution

The fourth proportional to 821,665.60, 1,232,613.60 and 322,913.60 is: 484,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,665.60 : 1,232,613.60 = 322,913.60 : x
  2. Step 2: Convert to fraction form
    821,665.60/1,232,613.60 = 322,913.60/x
  3. Step 3: Cross multiply
    821,665.60x = 1,232,613.60 × 322,913.60
  4. Step 4: Simplify right side
    821,665.60x = 398,027,694,984.96
  5. Step 5: Solve for x
    x = 398,027,694,984.96/821,665.60
  6. Step 6: Final answer
    x = 484,415.67

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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.