Home / 851,329.89-1,276,994.84-808,759.94

Finding the Fourth Proportional to 851,329.89, 1,276,994.84 and 808,759.94

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Solution

The fourth proportional to 851,329.89, 1,276,994.84 and 808,759.94 is: 1,213,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,329.89 : 1,276,994.84 = 808,759.94 : x
  2. Step 2: Convert to fraction form
    851,329.89/1,276,994.84 = 808,759.94/x
  3. Step 3: Cross multiply
    851,329.89x = 1,276,994.84 × 808,759.94
  4. Step 4: Simplify right side
    851,329.89x = 1,032,782,259,749.94
  5. Step 5: Solve for x
    x = 1,032,782,259,749.94/851,329.89
  6. Step 6: Final answer
    x = 1,213,139.90

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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.