Home / 1,636,987.80-2,455,481.70-515,400.60

Finding the Fourth Proportional to 1,636,987.80, 2,455,481.70 and 515,400.60

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Solution

The fourth proportional to 1,636,987.80, 2,455,481.70 and 515,400.60 is: 773,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,987.80 : 2,455,481.70 = 515,400.60 : x
  2. Step 2: Convert to fraction form
    1,636,987.80/2,455,481.70 = 515,400.60/x
  3. Step 3: Cross multiply
    1,636,987.80x = 2,455,481.70 × 515,400.60
  4. Step 4: Simplify right side
    1,636,987.80x = 1,265,556,741,469.02
  5. Step 5: Solve for x
    x = 1,265,556,741,469.02/1,636,987.80
  6. Step 6: Final answer
    x = 773,100.90

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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.