Home / 1,421,042.94-1,961,039.77-767,669.20

Finding the Fourth Proportional to 1,421,042.94, 1,961,039.77 and 767,669.20

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Solution

The fourth proportional to 1,421,042.94, 1,961,039.77 and 767,669.20 is: 1,059,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,042.94 : 1,961,039.77 = 767,669.20 : x
  2. Step 2: Convert to fraction form
    1,421,042.94/1,961,039.77 = 767,669.20/x
  3. Step 3: Cross multiply
    1,421,042.94x = 1,961,039.77 × 767,669.20
  4. Step 4: Simplify right side
    1,421,042.94x = 1,505,429,824,582.31
  5. Step 5: Solve for x
    x = 1,505,429,824,582.31/1,421,042.94
  6. Step 6: Final answer
    x = 1,059,383.77

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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.