Home / 2,019,873.15-2,788,435.04-1,256,172.75

Finding the Fourth Proportional to 2,019,873.15, 2,788,435.04 and 1,256,172.75

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Solution

The fourth proportional to 2,019,873.15, 2,788,435.04 and 1,256,172.75 is: 1,734,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,873.15 : 2,788,435.04 = 1,256,172.75 : x
  2. Step 2: Convert to fraction form
    2,019,873.15/2,788,435.04 = 1,256,172.75/x
  3. Step 3: Cross multiply
    2,019,873.15x = 2,788,435.04 × 1,256,172.75
  4. Step 4: Simplify right side
    2,019,873.15x = 3,502,756,112,393.16
  5. Step 5: Solve for x
    x = 3,502,756,112,393.16/2,019,873.15
  6. Step 6: Final answer
    x = 1,734,146.58

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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.