Home / 669,664.80-1,004,497.20-403,725.60

Finding the Fourth Proportional to 669,664.80, 1,004,497.20 and 403,725.60

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Solution

The fourth proportional to 669,664.80, 1,004,497.20 and 403,725.60 is: 605,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,664.80 : 1,004,497.20 = 403,725.60 : x
  2. Step 2: Convert to fraction form
    669,664.80/1,004,497.20 = 403,725.60/x
  3. Step 3: Cross multiply
    669,664.80x = 1,004,497.20 × 403,725.60
  4. Step 4: Simplify right side
    669,664.80x = 405,541,234,768.32
  5. Step 5: Solve for x
    x = 405,541,234,768.32/669,664.80
  6. Step 6: Final answer
    x = 605,588.40

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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.