Home / 1,296,133.80-1,941,867.90-1,058,188.20

Finding the Fourth Proportional to 1,296,133.80, 1,941,867.90 and 1,058,188.20

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Solution

The fourth proportional to 1,296,133.80, 1,941,867.90 and 1,058,188.20 is: 1,585,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,133.80 : 1,941,867.90 = 1,058,188.20 : x
  2. Step 2: Convert to fraction form
    1,296,133.80/1,941,867.90 = 1,058,188.20/x
  3. Step 3: Cross multiply
    1,296,133.80x = 1,941,867.90 × 1,058,188.20
  4. Step 4: Simplify right side
    1,296,133.80x = 2,054,861,697,738.78
  5. Step 5: Solve for x
    x = 2,054,861,697,738.78/1,296,133.80
  6. Step 6: Final answer
    x = 1,585,377.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.