Home / 905,998.80-1,358,998.20-486,094.80

Finding the Fourth Proportional to 905,998.80, 1,358,998.20 and 486,094.80

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Solution

The fourth proportional to 905,998.80, 1,358,998.20 and 486,094.80 is: 729,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,998.80 : 1,358,998.20 = 486,094.80 : x
  2. Step 2: Convert to fraction form
    905,998.80/1,358,998.20 = 486,094.80/x
  3. Step 3: Cross multiply
    905,998.80x = 1,358,998.20 × 486,094.80
  4. Step 4: Simplify right side
    905,998.80x = 660,601,958,229.36
  5. Step 5: Solve for x
    x = 660,601,958,229.36/905,998.80
  6. Step 6: Final answer
    x = 729,142.20

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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.