Home / 1,531,055.74-2,112,840.18-842,712.88

Finding the Fourth Proportional to 1,531,055.74, 2,112,840.18 and 842,712.88

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Solution

The fourth proportional to 1,531,055.74, 2,112,840.18 and 842,712.88 is: 1,162,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,055.74 : 2,112,840.18 = 842,712.88 : x
  2. Step 2: Convert to fraction form
    1,531,055.74/2,112,840.18 = 842,712.88/x
  3. Step 3: Cross multiply
    1,531,055.74x = 2,112,840.18 × 842,712.88
  4. Step 4: Simplify right side
    1,531,055.74x = 1,780,517,633,067.52
  5. Step 5: Solve for x
    x = 1,780,517,633,067.52/1,531,055.74
  6. Step 6: Final answer
    x = 1,162,934.56

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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.