Home / 2,612,940.31-3,919,409.02-815,977.79

Finding the Fourth Proportional to 2,612,940.31, 3,919,409.02 and 815,977.79

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Solution

The fourth proportional to 2,612,940.31, 3,919,409.02 and 815,977.79 is: 1,223,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,940.31 : 3,919,409.02 = 815,977.79 : x
  2. Step 2: Convert to fraction form
    2,612,940.31/3,919,409.02 = 815,977.79/x
  3. Step 3: Cross multiply
    2,612,940.31x = 3,919,409.02 × 815,977.79
  4. Step 4: Simplify right side
    2,612,940.31x = 3,198,150,710,245.67
  5. Step 5: Solve for x
    x = 3,198,150,710,245.67/2,612,940.31
  6. Step 6: Final answer
    x = 1,223,966.23

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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.