Home / 1,511,345.79-2,086,073.60-1,028,718.63

Finding the Fourth Proportional to 1,511,345.79, 2,086,073.60 and 1,028,718.63

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Solution

The fourth proportional to 1,511,345.79, 2,086,073.60 and 1,028,718.63 is: 1,419,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,345.79 : 2,086,073.60 = 1,028,718.63 : x
  2. Step 2: Convert to fraction form
    1,511,345.79/2,086,073.60 = 1,028,718.63/x
  3. Step 3: Cross multiply
    1,511,345.79x = 2,086,073.60 × 1,028,718.63
  4. Step 4: Simplify right side
    1,511,345.79x = 2,145,982,770,727.58
  5. Step 5: Solve for x
    x = 2,145,982,770,727.58/1,511,345.79
  6. Step 6: Final answer
    x = 1,419,915.14

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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.