Home / 1,259,078.60-1,888,848.30-511,200.20

Finding the Fourth Proportional to 1,259,078.60, 1,888,848.30 and 511,200.20

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Solution

The fourth proportional to 1,259,078.60, 1,888,848.30 and 511,200.20 is: 766,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,078.60 : 1,888,848.30 = 511,200.20 : x
  2. Step 2: Convert to fraction form
    1,259,078.60/1,888,848.30 = 511,200.20/x
  3. Step 3: Cross multiply
    1,259,078.60x = 1,888,848.30 × 511,200.20
  4. Step 4: Simplify right side
    1,259,078.60x = 965,579,628,729.66
  5. Step 5: Solve for x
    x = 965,579,628,729.66/1,259,078.60
  6. Step 6: Final answer
    x = 766,893.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.