Home / 3,878,238.43-5,818,467.57-1,320,017.05

Finding the Fourth Proportional to 3,878,238.43, 5,818,467.57 and 1,320,017.05

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Solution

The fourth proportional to 3,878,238.43, 5,818,467.57 and 1,320,017.05 is: 1,980,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,238.43 : 5,818,467.57 = 1,320,017.05 : x
  2. Step 2: Convert to fraction form
    3,878,238.43/5,818,467.57 = 1,320,017.05/x
  3. Step 3: Cross multiply
    3,878,238.43x = 5,818,467.57 × 1,320,017.05
  4. Step 4: Simplify right side
    3,878,238.43x = 7,680,476,397,272.07
  5. Step 5: Solve for x
    x = 7,680,476,397,272.07/3,878,238.43
  6. Step 6: Final answer
    x = 1,980,403.35

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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.