Home / 1,427,781.51-2,140,983.34-828,893.43

Finding the Fourth Proportional to 1,427,781.51, 2,140,983.34 and 828,893.43

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Solution

The fourth proportional to 1,427,781.51, 2,140,983.34 and 828,893.43 is: 1,242,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,781.51 : 2,140,983.34 = 828,893.43 : x
  2. Step 2: Convert to fraction form
    1,427,781.51/2,140,983.34 = 828,893.43/x
  3. Step 3: Cross multiply
    1,427,781.51x = 2,140,983.34 × 828,893.43
  4. Step 4: Simplify right side
    1,427,781.51x = 1,774,647,022,193.22
  5. Step 5: Solve for x
    x = 1,774,647,022,193.22/1,427,781.51
  6. Step 6: Final answer
    x = 1,242,940.19

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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.