Home / 1,188,596.90-1,640,345.19-672,351.32

Finding the Fourth Proportional to 1,188,596.90, 1,640,345.19 and 672,351.32

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Solution

The fourth proportional to 1,188,596.90, 1,640,345.19 and 672,351.32 is: 927,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,596.90 : 1,640,345.19 = 672,351.32 : x
  2. Step 2: Convert to fraction form
    1,188,596.90/1,640,345.19 = 672,351.32/x
  3. Step 3: Cross multiply
    1,188,596.90x = 1,640,345.19 × 672,351.32
  4. Step 4: Simplify right side
    1,188,596.90x = 1,102,888,253,752.15
  5. Step 5: Solve for x
    x = 1,102,888,253,752.15/1,188,596.90
  6. Step 6: Final answer
    x = 927,890.91

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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.