Home / 1,991,738.20-2,987,607.30-1,641,818.20

Finding the Fourth Proportional to 1,991,738.20, 2,987,607.30 and 1,641,818.20

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Solution

The fourth proportional to 1,991,738.20, 2,987,607.30 and 1,641,818.20 is: 2,462,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,738.20 : 2,987,607.30 = 1,641,818.20 : x
  2. Step 2: Convert to fraction form
    1,991,738.20/2,987,607.30 = 1,641,818.20/x
  3. Step 3: Cross multiply
    1,991,738.20x = 2,987,607.30 × 1,641,818.20
  4. Step 4: Simplify right side
    1,991,738.20x = 4,905,108,039,592.86
  5. Step 5: Solve for x
    x = 4,905,108,039,592.86/1,991,738.20
  6. Step 6: Final answer
    x = 2,462,727.30

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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.