Home / 1,325,415.16-1,988,067.21-426,837.01

Finding the Fourth Proportional to 1,325,415.16, 1,988,067.21 and 426,837.01

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Solution

The fourth proportional to 1,325,415.16, 1,988,067.21 and 426,837.01 is: 640,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,415.16 : 1,988,067.21 = 426,837.01 : x
  2. Step 2: Convert to fraction form
    1,325,415.16/1,988,067.21 = 426,837.01/x
  3. Step 3: Cross multiply
    1,325,415.16x = 1,988,067.21 × 426,837.01
  4. Step 4: Simplify right side
    1,325,415.16x = 848,580,663,595.44
  5. Step 5: Solve for x
    x = 848,580,663,595.44/1,325,415.16
  6. Step 6: Final answer
    x = 640,237.63

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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.