Home / 1,400,540.40-2,100,810.60-691,952.40

Finding the Fourth Proportional to 1,400,540.40, 2,100,810.60 and 691,952.40

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Solution

The fourth proportional to 1,400,540.40, 2,100,810.60 and 691,952.40 is: 1,037,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,540.40 : 2,100,810.60 = 691,952.40 : x
  2. Step 2: Convert to fraction form
    1,400,540.40/2,100,810.60 = 691,952.40/x
  3. Step 3: Cross multiply
    1,400,540.40x = 2,100,810.60 × 691,952.40
  4. Step 4: Simplify right side
    1,400,540.40x = 1,453,660,936,615.44
  5. Step 5: Solve for x
    x = 1,453,660,936,615.44/1,400,540.40
  6. Step 6: Final answer
    x = 1,037,928.60

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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.