Home / 669,784.80-1,004,677.20-403,845.60

Finding the Fourth Proportional to 669,784.80, 1,004,677.20 and 403,845.60

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Solution

The fourth proportional to 669,784.80, 1,004,677.20 and 403,845.60 is: 605,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,784.80 : 1,004,677.20 = 403,845.60 : x
  2. Step 2: Convert to fraction form
    669,784.80/1,004,677.20 = 403,845.60/x
  3. Step 3: Cross multiply
    669,784.80x = 1,004,677.20 × 403,845.60
  4. Step 4: Simplify right side
    669,784.80x = 405,734,466,640.32
  5. Step 5: Solve for x
    x = 405,734,466,640.32/669,784.80
  6. Step 6: Final answer
    x = 605,768.40

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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.