Home / 1,978,450.80-2,730,262.32-1,118,992.80

Finding the Fourth Proportional to 1,978,450.80, 2,730,262.32 and 1,118,992.80

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Solution

The fourth proportional to 1,978,450.80, 2,730,262.32 and 1,118,992.80 is: 1,544,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,450.80 : 2,730,262.32 = 1,118,992.80 : x
  2. Step 2: Convert to fraction form
    1,978,450.80/2,730,262.32 = 1,118,992.80/x
  3. Step 3: Cross multiply
    1,978,450.80x = 2,730,262.32 × 1,118,992.80
  4. Step 4: Simplify right side
    1,978,450.80x = 3,055,143,878,191.30
  5. Step 5: Solve for x
    x = 3,055,143,878,191.30/1,978,450.80
  6. Step 6: Final answer
    x = 1,544,210.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.