Home / 1,383,615.30-2,075,422.95-1,330,471.20

Finding the Fourth Proportional to 1,383,615.30, 2,075,422.95 and 1,330,471.20

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Solution

The fourth proportional to 1,383,615.30, 2,075,422.95 and 1,330,471.20 is: 1,995,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,615.30 : 2,075,422.95 = 1,330,471.20 : x
  2. Step 2: Convert to fraction form
    1,383,615.30/2,075,422.95 = 1,330,471.20/x
  3. Step 3: Cross multiply
    1,383,615.30x = 2,075,422.95 × 1,330,471.20
  4. Step 4: Simplify right side
    1,383,615.30x = 2,761,290,462,794.04
  5. Step 5: Solve for x
    x = 2,761,290,462,794.04/1,383,615.30
  6. Step 6: Final answer
    x = 1,995,706.80

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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.