Home / 1,918,429.39-2,647,433.07-1,058,990.23

Finding the Fourth Proportional to 1,918,429.39, 2,647,433.07 and 1,058,990.23

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Solution

The fourth proportional to 1,918,429.39, 2,647,433.07 and 1,058,990.23 is: 1,461,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,429.39 : 2,647,433.07 = 1,058,990.23 : x
  2. Step 2: Convert to fraction form
    1,918,429.39/2,647,433.07 = 1,058,990.23/x
  3. Step 3: Cross multiply
    1,918,429.39x = 2,647,433.07 × 1,058,990.23
  4. Step 4: Simplify right side
    1,918,429.39x = 2,803,605,755,708.91
  5. Step 5: Solve for x
    x = 2,803,605,755,708.91/1,918,429.39
  6. Step 6: Final answer
    x = 1,461,406.80

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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.