Home / 1,212,010.80-1,818,016.20-370,453.20

Finding the Fourth Proportional to 1,212,010.80, 1,818,016.20 and 370,453.20

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Solution

The fourth proportional to 1,212,010.80, 1,818,016.20 and 370,453.20 is: 555,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,010.80 : 1,818,016.20 = 370,453.20 : x
  2. Step 2: Convert to fraction form
    1,212,010.80/1,818,016.20 = 370,453.20/x
  3. Step 3: Cross multiply
    1,212,010.80x = 1,818,016.20 × 370,453.20
  4. Step 4: Simplify right side
    1,212,010.80x = 673,489,918,941.84
  5. Step 5: Solve for x
    x = 673,489,918,941.84/1,212,010.80
  6. Step 6: Final answer
    x = 555,679.80

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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.