Home / 1,107,745.80-1,661,618.70-397,845.60

Finding the Fourth Proportional to 1,107,745.80, 1,661,618.70 and 397,845.60

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Solution

The fourth proportional to 1,107,745.80, 1,661,618.70 and 397,845.60 is: 596,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,745.80 : 1,661,618.70 = 397,845.60 : x
  2. Step 2: Convert to fraction form
    1,107,745.80/1,661,618.70 = 397,845.60/x
  3. Step 3: Cross multiply
    1,107,745.80x = 1,661,618.70 × 397,845.60
  4. Step 4: Simplify right side
    1,107,745.80x = 661,067,688,672.72
  5. Step 5: Solve for x
    x = 661,067,688,672.72/1,107,745.80
  6. Step 6: Final answer
    x = 596,768.40

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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.