Home / 1,188,661.61-1,640,352.88-672,404.44

Finding the Fourth Proportional to 1,188,661.61, 1,640,352.88 and 672,404.44

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Solution

The fourth proportional to 1,188,661.61, 1,640,352.88 and 672,404.44 is: 927,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,661.61 : 1,640,352.88 = 672,404.44 : x
  2. Step 2: Convert to fraction form
    1,188,661.61/1,640,352.88 = 672,404.44/x
  3. Step 3: Cross multiply
    1,188,661.61x = 1,640,352.88 × 672,404.44
  4. Step 4: Simplify right side
    1,188,661.61x = 1,102,980,556,418.41
  5. Step 5: Solve for x
    x = 1,102,980,556,418.41/1,188,661.61
  6. Step 6: Final answer
    x = 927,918.05

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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.