Home / 1,185,962.43-1,636,608.31-642,093.80

Finding the Fourth Proportional to 1,185,962.43, 1,636,608.31 and 642,093.80

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Solution

The fourth proportional to 1,185,962.43, 1,636,608.31 and 642,093.80 is: 886,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,962.43 : 1,636,608.31 = 642,093.80 : x
  2. Step 2: Convert to fraction form
    1,185,962.43/1,636,608.31 = 642,093.80/x
  3. Step 3: Cross multiply
    1,185,962.43x = 1,636,608.31 × 642,093.80
  4. Step 4: Simplify right side
    1,185,962.43x = 1,050,856,048,879.48
  5. Step 5: Solve for x
    x = 1,050,856,048,879.48/1,185,962.43
  6. Step 6: Final answer
    x = 886,078.70

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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.