Home / 2,187,078.40-3,280,617.60-1,840,657.60

Finding the Fourth Proportional to 2,187,078.40, 3,280,617.60 and 1,840,657.60

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Solution

The fourth proportional to 2,187,078.40, 3,280,617.60 and 1,840,657.60 is: 2,760,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,078.40 : 3,280,617.60 = 1,840,657.60 : x
  2. Step 2: Convert to fraction form
    2,187,078.40/3,280,617.60 = 1,840,657.60/x
  3. Step 3: Cross multiply
    2,187,078.40x = 3,280,617.60 × 1,840,657.60
  4. Step 4: Simplify right side
    2,187,078.40x = 6,038,493,718,133.76
  5. Step 5: Solve for x
    x = 6,038,493,718,133.76/2,187,078.40
  6. Step 6: Final answer
    x = 2,760,986.40

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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.