Home / 1,107,109.80-1,660,664.70-397,209.60

Finding the Fourth Proportional to 1,107,109.80, 1,660,664.70 and 397,209.60

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Solution

The fourth proportional to 1,107,109.80, 1,660,664.70 and 397,209.60 is: 595,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,109.80 : 1,660,664.70 = 397,209.60 : x
  2. Step 2: Convert to fraction form
    1,107,109.80/1,660,664.70 = 397,209.60/x
  3. Step 3: Cross multiply
    1,107,109.80x = 1,660,664.70 × 397,209.60
  4. Step 4: Simplify right side
    1,107,109.80x = 659,631,961,221.12
  5. Step 5: Solve for x
    x = 659,631,961,221.12/1,107,109.80
  6. Step 6: Final answer
    x = 595,814.40

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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.