Home / 1,212,707.80-1,822,998.30-860,163.40

Finding the Fourth Proportional to 1,212,707.80, 1,822,998.30 and 860,163.40

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Solution

The fourth proportional to 1,212,707.80, 1,822,998.30 and 860,163.40 is: 1,293,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,707.80 : 1,822,998.30 = 860,163.40 : x
  2. Step 2: Convert to fraction form
    1,212,707.80/1,822,998.30 = 860,163.40/x
  3. Step 3: Cross multiply
    1,212,707.80x = 1,822,998.30 × 860,163.40
  4. Step 4: Simplify right side
    1,212,707.80x = 1,568,076,415,922.22
  5. Step 5: Solve for x
    x = 1,568,076,415,922.22/1,212,707.80
  6. Step 6: Final answer
    x = 1,293,037.30

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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.