Home / 743,997.40-1,115,909.70-211,600.60

Finding the Fourth Proportional to 743,997.40, 1,115,909.70 and 211,600.60

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Solution

The fourth proportional to 743,997.40, 1,115,909.70 and 211,600.60 is: 317,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,997.40 : 1,115,909.70 = 211,600.60 : x
  2. Step 2: Convert to fraction form
    743,997.40/1,115,909.70 = 211,600.60/x
  3. Step 3: Cross multiply
    743,997.40x = 1,115,909.70 × 211,600.60
  4. Step 4: Simplify right side
    743,997.40x = 236,127,162,065.82
  5. Step 5: Solve for x
    x = 236,127,162,065.82/743,997.40
  6. Step 6: Final answer
    x = 317,376.33

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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.