Home / 1,558,725.12-2,150,997.12-879,724.80

Finding the Fourth Proportional to 1,558,725.12, 2,150,997.12 and 879,724.80

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Solution

The fourth proportional to 1,558,725.12, 2,150,997.12 and 879,724.80 is: 1,213,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,725.12 : 2,150,997.12 = 879,724.80 : x
  2. Step 2: Convert to fraction form
    1,558,725.12/2,150,997.12 = 879,724.80/x
  3. Step 3: Cross multiply
    1,558,725.12x = 2,150,997.12 × 879,724.80
  4. Step 4: Simplify right side
    1,558,725.12x = 1,892,285,511,192.58
  5. Step 5: Solve for x
    x = 1,892,285,511,192.58/1,558,725.12
  6. Step 6: Final answer
    x = 1,213,995.65

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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.