Home / 1,558,198.78-2,150,316.40-879,198.46

Finding the Fourth Proportional to 1,558,198.78, 2,150,316.40 and 879,198.46

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Solution

The fourth proportional to 1,558,198.78, 2,150,316.40 and 879,198.46 is: 1,213,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,198.78 : 2,150,316.40 = 879,198.46 : x
  2. Step 2: Convert to fraction form
    1,558,198.78/2,150,316.40 = 879,198.46/x
  3. Step 3: Cross multiply
    1,558,198.78x = 2,150,316.40 × 879,198.46
  4. Step 4: Simplify right side
    1,558,198.78x = 1,890,554,867,392.74
  5. Step 5: Solve for x
    x = 1,890,554,867,392.74/1,558,198.78
  6. Step 6: Final answer
    x = 1,213,295.05

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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.