Home / 1,311,878.66-1,809,773.96-767,680.66

Finding the Fourth Proportional to 1,311,878.66, 1,809,773.96 and 767,680.66

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Solution

The fourth proportional to 1,311,878.66, 1,809,773.96 and 767,680.66 is: 1,059,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,878.66 : 1,809,773.96 = 767,680.66 : x
  2. Step 2: Convert to fraction form
    1,311,878.66/1,809,773.96 = 767,680.66/x
  3. Step 3: Cross multiply
    1,311,878.66x = 1,809,773.96 × 767,680.66
  4. Step 4: Simplify right side
    1,311,878.66x = 1,389,328,466,487.43
  5. Step 5: Solve for x
    x = 1,389,328,466,487.43/1,311,878.66
  6. Step 6: Final answer
    x = 1,059,037.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.