Home / 1,991,924.46-2,988,499.05-1,780,222.86

Finding the Fourth Proportional to 1,991,924.46, 2,988,499.05 and 1,780,222.86

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Solution

The fourth proportional to 1,991,924.46, 2,988,499.05 and 1,780,222.86 is: 2,670,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,924.46 : 2,988,499.05 = 1,780,222.86 : x
  2. Step 2: Convert to fraction form
    1,991,924.46/2,988,499.05 = 1,780,222.86/x
  3. Step 3: Cross multiply
    1,991,924.46x = 2,988,499.05 × 1,780,222.86
  4. Step 4: Simplify right side
    1,991,924.46x = 5,320,194,325,898.28
  5. Step 5: Solve for x
    x = 5,320,194,325,898.28/1,991,924.46
  6. Step 6: Final answer
    x = 2,670,881.57

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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.