Home / 2,185,387.80-3,280,025.70-1,285,704.60

Finding the Fourth Proportional to 2,185,387.80, 3,280,025.70 and 1,285,704.60

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Solution

The fourth proportional to 2,185,387.80, 3,280,025.70 and 1,285,704.60 is: 1,929,700.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,387.80 : 3,280,025.70 = 1,285,704.60 : x
  2. Step 2: Convert to fraction form
    2,185,387.80/3,280,025.70 = 1,285,704.60/x
  3. Step 3: Cross multiply
    2,185,387.80x = 3,280,025.70 × 1,285,704.60
  4. Step 4: Simplify right side
    2,185,387.80x = 4,217,144,130,608.22
  5. Step 5: Solve for x
    x = 4,217,144,130,608.22/2,185,387.80
  6. Step 6: Final answer
    x = 1,929,700.59

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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.