Home / 1,292,667.12-1,939,886.44-451,218.80

Finding the Fourth Proportional to 1,292,667.12, 1,939,886.44 and 451,218.80

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Solution

The fourth proportional to 1,292,667.12, 1,939,886.44 and 451,218.80 is: 677,137.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,667.12 : 1,939,886.44 = 451,218.80 : x
  2. Step 2: Convert to fraction form
    1,292,667.12/1,939,886.44 = 451,218.80/x
  3. Step 3: Cross multiply
    1,292,667.12x = 1,939,886.44 × 451,218.80
  4. Step 4: Simplify right side
    1,292,667.12x = 875,313,231,593.07
  5. Step 5: Solve for x
    x = 875,313,231,593.07/1,292,667.12
  6. Step 6: Final answer
    x = 677,137.38

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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.