Home / 2,145,936.80-3,218,905.20-1,133,674.40

Finding the Fourth Proportional to 2,145,936.80, 3,218,905.20 and 1,133,674.40

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Solution

The fourth proportional to 2,145,936.80, 3,218,905.20 and 1,133,674.40 is: 1,700,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,936.80 : 3,218,905.20 = 1,133,674.40 : x
  2. Step 2: Convert to fraction form
    2,145,936.80/3,218,905.20 = 1,133,674.40/x
  3. Step 3: Cross multiply
    2,145,936.80x = 3,218,905.20 × 1,133,674.40
  4. Step 4: Simplify right side
    2,145,936.80x = 3,649,190,421,266.88
  5. Step 5: Solve for x
    x = 3,649,190,421,266.88/2,145,936.80
  6. Step 6: Final answer
    x = 1,700,511.60

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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.