Home / 3,600,665.80-4,968,820.50-1,990,978.76

Finding the Fourth Proportional to 3,600,665.80, 4,968,820.50 and 1,990,978.76

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Solution

The fourth proportional to 3,600,665.80, 4,968,820.50 and 1,990,978.76 is: 2,747,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600,665.80 : 4,968,820.50 = 1,990,978.76 : x
  2. Step 2: Convert to fraction form
    3,600,665.80/4,968,820.50 = 1,990,978.76/x
  3. Step 3: Cross multiply
    3,600,665.80x = 4,968,820.50 × 1,990,978.76
  4. Step 4: Simplify right side
    3,600,665.80x = 9,892,816,077,752.58
  5. Step 5: Solve for x
    x = 9,892,816,077,752.58/3,600,665.80
  6. Step 6: Final answer
    x = 2,747,496.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.