Home / 1,361,999.55-1,879,394.79-781,192.73

Finding the Fourth Proportional to 1,361,999.55, 1,879,394.79 and 781,192.73

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Solution

The fourth proportional to 1,361,999.55, 1,879,394.79 and 781,192.73 is: 1,077,951.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,999.55 : 1,879,394.79 = 781,192.73 : x
  2. Step 2: Convert to fraction form
    1,361,999.55/1,879,394.79 = 781,192.73/x
  3. Step 3: Cross multiply
    1,361,999.55x = 1,879,394.79 × 781,192.73
  4. Step 4: Simplify right side
    1,361,999.55x = 1,468,169,537,350.90
  5. Step 5: Solve for x
    x = 1,468,169,537,350.90/1,361,999.55
  6. Step 6: Final answer
    x = 1,077,951.56

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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.