Home / 1,820,718.80-2,731,843.65-978,286.40

Finding the Fourth Proportional to 1,820,718.80, 2,731,843.65 and 978,286.40

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Solution

The fourth proportional to 1,820,718.80, 2,731,843.65 and 978,286.40 is: 1,467,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,718.80 : 2,731,843.65 = 978,286.40 : x
  2. Step 2: Convert to fraction form
    1,820,718.80/2,731,843.65 = 978,286.40/x
  3. Step 3: Cross multiply
    1,820,718.80x = 2,731,843.65 × 978,286.40
  4. Step 4: Simplify right side
    1,820,718.80x = 2,672,525,489,721.36
  5. Step 5: Solve for x
    x = 2,672,525,489,721.36/1,820,718.80
  6. Step 6: Final answer
    x = 1,467,840.88

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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.