Home / 2,990,976.80-4,486,465.20-996,432.80

Finding the Fourth Proportional to 2,990,976.80, 4,486,465.20 and 996,432.80

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Solution

The fourth proportional to 2,990,976.80, 4,486,465.20 and 996,432.80 is: 1,494,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,976.80 : 4,486,465.20 = 996,432.80 : x
  2. Step 2: Convert to fraction form
    2,990,976.80/4,486,465.20 = 996,432.80/x
  3. Step 3: Cross multiply
    2,990,976.80x = 4,486,465.20 × 996,432.80
  4. Step 4: Simplify right side
    2,990,976.80x = 4,470,461,081,338.56
  5. Step 5: Solve for x
    x = 4,470,461,081,338.56/2,990,976.80
  6. Step 6: Final answer
    x = 1,494,649.20

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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.