Home / 1,918,222.92-2,647,147.86-1,058,783.40

Finding the Fourth Proportional to 1,918,222.92, 2,647,147.86 and 1,058,783.40

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Solution

The fourth proportional to 1,918,222.92, 2,647,147.86 and 1,058,783.40 is: 1,461,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,222.92 : 2,647,147.86 = 1,058,783.40 : x
  2. Step 2: Convert to fraction form
    1,918,222.92/2,647,147.86 = 1,058,783.40/x
  3. Step 3: Cross multiply
    1,918,222.92x = 2,647,147.86 × 1,058,783.40
  4. Step 4: Simplify right side
    1,918,222.92x = 2,802,756,211,513.52
  5. Step 5: Solve for x
    x = 2,802,756,211,513.52/1,918,222.92
  6. Step 6: Final answer
    x = 1,461,121.22

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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.