Home / 807,899.24-1,211,890.38-208,865.59

Finding the Fourth Proportional to 807,899.24, 1,211,890.38 and 208,865.59

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Solution

The fourth proportional to 807,899.24, 1,211,890.38 and 208,865.59 is: 313,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,899.24 : 1,211,890.38 = 208,865.59 : x
  2. Step 2: Convert to fraction form
    807,899.24/1,211,890.38 = 208,865.59/x
  3. Step 3: Cross multiply
    807,899.24x = 1,211,890.38 × 208,865.59
  4. Step 4: Simplify right side
    807,899.24x = 253,122,200,687.42
  5. Step 5: Solve for x
    x = 253,122,200,687.42/807,899.24
  6. Step 6: Final answer
    x = 313,309.12

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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.