Home / 1,292,661.12-1,939,877.44-451,212.80

Finding the Fourth Proportional to 1,292,661.12, 1,939,877.44 and 451,212.80

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Solution

The fourth proportional to 1,292,661.12, 1,939,877.44 and 451,212.80 is: 677,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,661.12 : 1,939,877.44 = 451,212.80 : x
  2. Step 2: Convert to fraction form
    1,292,661.12/1,939,877.44 = 451,212.80/x
  3. Step 3: Cross multiply
    1,292,661.12x = 1,939,877.44 × 451,212.80
  4. Step 4: Simplify right side
    1,292,661.12x = 875,297,531,359.23
  5. Step 5: Solve for x
    x = 875,297,531,359.23/1,292,661.12
  6. Step 6: Final answer
    x = 677,128.38

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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.