Home / 2,019,745.20-3,028,111.20-1,220,858.40

Finding the Fourth Proportional to 2,019,745.20, 3,028,111.20 and 1,220,858.40

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Solution

The fourth proportional to 2,019,745.20, 3,028,111.20 and 1,220,858.40 is: 1,830,376.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,745.20 : 3,028,111.20 = 1,220,858.40 : x
  2. Step 2: Convert to fraction form
    2,019,745.20/3,028,111.20 = 1,220,858.40/x
  3. Step 3: Cross multiply
    2,019,745.20x = 3,028,111.20 × 1,220,858.40
  4. Step 4: Simplify right side
    2,019,745.20x = 3,696,894,994,654.08
  5. Step 5: Solve for x
    x = 3,696,894,994,654.08/2,019,745.20
  6. Step 6: Final answer
    x = 1,830,376.92

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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.