Home / 1,420,104.52-1,959,485.22-808,221.58

Finding the Fourth Proportional to 1,420,104.52, 1,959,485.22 and 808,221.58

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Solution

The fourth proportional to 1,420,104.52, 1,959,485.22 and 808,221.58 is: 1,115,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,104.52 : 1,959,485.22 = 808,221.58 : x
  2. Step 2: Convert to fraction form
    1,420,104.52/1,959,485.22 = 808,221.58/x
  3. Step 3: Cross multiply
    1,420,104.52x = 1,959,485.22 × 808,221.58
  4. Step 4: Simplify right side
    1,420,104.52x = 1,583,698,240,495.05
  5. Step 5: Solve for x
    x = 1,583,698,240,495.05/1,420,104.52
  6. Step 6: Final answer
    x = 1,115,198.37

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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.