Home / 1,927,940.80-2,891,911.20-1,620,011.20

Finding the Fourth Proportional to 1,927,940.80, 2,891,911.20 and 1,620,011.20

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Solution

The fourth proportional to 1,927,940.80, 2,891,911.20 and 1,620,011.20 is: 2,430,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,940.80 : 2,891,911.20 = 1,620,011.20 : x
  2. Step 2: Convert to fraction form
    1,927,940.80/2,891,911.20 = 1,620,011.20/x
  3. Step 3: Cross multiply
    1,927,940.80x = 2,891,911.20 × 1,620,011.20
  4. Step 4: Simplify right side
    1,927,940.80x = 4,684,928,533,405.44
  5. Step 5: Solve for x
    x = 4,684,928,533,405.44/1,927,940.80
  6. Step 6: Final answer
    x = 2,430,016.80

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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.