Home / 800,938.80-1,201,408.20-486,010.80

Finding the Fourth Proportional to 800,938.80, 1,201,408.20 and 486,010.80

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Solution

The fourth proportional to 800,938.80, 1,201,408.20 and 486,010.80 is: 729,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,938.80 : 1,201,408.20 = 486,010.80 : x
  2. Step 2: Convert to fraction form
    800,938.80/1,201,408.20 = 486,010.80/x
  3. Step 3: Cross multiply
    800,938.80x = 1,201,408.20 × 486,010.80
  4. Step 4: Simplify right side
    800,938.80x = 583,897,360,408.56
  5. Step 5: Solve for x
    x = 583,897,360,408.56/800,938.80
  6. Step 6: Final answer
    x = 729,016.20

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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.