Home / 1,421,062.94-1,961,067.40-767,689.22

Finding the Fourth Proportional to 1,421,062.94, 1,961,067.40 and 767,689.22

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Solution

The fourth proportional to 1,421,062.94, 1,961,067.40 and 767,689.22 is: 1,059,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,062.94 : 1,961,067.40 = 767,689.22 : x
  2. Step 2: Convert to fraction form
    1,421,062.94/1,961,067.40 = 767,689.22/x
  3. Step 3: Cross multiply
    1,421,062.94x = 1,961,067.40 × 767,689.22
  4. Step 4: Simplify right side
    1,421,062.94x = 1,505,490,302,673.43
  5. Step 5: Solve for x
    x = 1,505,490,302,673.43/1,421,062.94
  6. Step 6: Final answer
    x = 1,059,411.42

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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.