Home / 1,489,107.95-2,055,418.23-1,287,326.47

Finding the Fourth Proportional to 1,489,107.95, 2,055,418.23 and 1,287,326.47

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Solution

The fourth proportional to 1,489,107.95, 2,055,418.23 and 1,287,326.47 is: 1,776,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,107.95 : 2,055,418.23 = 1,287,326.47 : x
  2. Step 2: Convert to fraction form
    1,489,107.95/2,055,418.23 = 1,287,326.47/x
  3. Step 3: Cross multiply
    1,489,107.95x = 2,055,418.23 × 1,287,326.47
  4. Step 4: Simplify right side
    1,489,107.95x = 2,645,994,289,261.00
  5. Step 5: Solve for x
    x = 2,645,994,289,261.00/1,489,107.95
  6. Step 6: Final answer
    x = 1,776,898.91

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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.