Home / 1,931,391.26-2,665,809.88-1,319,791.58

Finding the Fourth Proportional to 1,931,391.26, 2,665,809.88 and 1,319,791.58

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Solution

The fourth proportional to 1,931,391.26, 2,665,809.88 and 1,319,791.58 is: 1,821,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,391.26 : 2,665,809.88 = 1,319,791.58 : x
  2. Step 2: Convert to fraction form
    1,931,391.26/2,665,809.88 = 1,319,791.58/x
  3. Step 3: Cross multiply
    1,931,391.26x = 2,665,809.88 × 1,319,791.58
  4. Step 4: Simplify right side
    1,931,391.26x = 3,518,313,433,504.81
  5. Step 5: Solve for x
    x = 3,518,313,433,504.81/1,931,391.26
  6. Step 6: Final answer
    x = 1,821,647.18

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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.