Home / 2,895,511.80-4,343,786.10-1,212,785.40

Finding the Fourth Proportional to 2,895,511.80, 4,343,786.10 and 1,212,785.40

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Solution

The fourth proportional to 2,895,511.80, 4,343,786.10 and 1,212,785.40 is: 1,819,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895,511.80 : 4,343,786.10 = 1,212,785.40 : x
  2. Step 2: Convert to fraction form
    2,895,511.80/4,343,786.10 = 1,212,785.40/x
  3. Step 3: Cross multiply
    2,895,511.80x = 4,343,786.10 × 1,212,785.40
  4. Step 4: Simplify right side
    2,895,511.80x = 5,268,080,362,802.94
  5. Step 5: Solve for x
    x = 5,268,080,362,802.94/2,895,511.80
  6. Step 6: Final answer
    x = 1,819,395.23

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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.