Home / 807,835.70-1,211,749.90-208,745.93

Finding the Fourth Proportional to 807,835.70, 1,211,749.90 and 208,745.93

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Solution

The fourth proportional to 807,835.70, 1,211,749.90 and 208,745.93 is: 313,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,835.70 : 1,211,749.90 = 208,745.93 : x
  2. Step 2: Convert to fraction form
    807,835.70/1,211,749.90 = 208,745.93/x
  3. Step 3: Cross multiply
    807,835.70x = 1,211,749.90 × 208,745.93
  4. Step 4: Simplify right side
    807,835.70x = 252,947,862,310.42
  5. Step 5: Solve for x
    x = 252,947,862,310.42/807,835.70
  6. Step 6: Final answer
    x = 313,117.95

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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.