Home / 2,887,543.80-4,331,315.70-1,991,748.60

Finding the Fourth Proportional to 2,887,543.80, 4,331,315.70 and 1,991,748.60

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Solution

The fourth proportional to 2,887,543.80, 4,331,315.70 and 1,991,748.60 is: 2,987,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887,543.80 : 4,331,315.70 = 1,991,748.60 : x
  2. Step 2: Convert to fraction form
    2,887,543.80/4,331,315.70 = 1,991,748.60/x
  3. Step 3: Cross multiply
    2,887,543.80x = 4,331,315.70 × 1,991,748.60
  4. Step 4: Simplify right side
    2,887,543.80x = 8,626,891,981,633.02
  5. Step 5: Solve for x
    x = 8,626,891,981,633.02/2,887,543.80
  6. Step 6: Final answer
    x = 2,987,622.90

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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.