Home / 1,426,390.13-1,968,414.31-781,808.33

Finding the Fourth Proportional to 1,426,390.13, 1,968,414.31 and 781,808.33

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Solution

The fourth proportional to 1,426,390.13, 1,968,414.31 and 781,808.33 is: 1,078,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,390.13 : 1,968,414.31 = 781,808.33 : x
  2. Step 2: Convert to fraction form
    1,426,390.13/1,968,414.31 = 781,808.33/x
  3. Step 3: Cross multiply
    1,426,390.13x = 1,968,414.31 × 781,808.33
  4. Step 4: Simplify right side
    1,426,390.13x = 1,538,922,704,811.33
  5. Step 5: Solve for x
    x = 1,538,922,704,811.33/1,426,390.13
  6. Step 6: Final answer
    x = 1,078,893.27

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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.