Home / 1,660,661.60-2,489,437.20-1,300,632.80

Finding the Fourth Proportional to 1,660,661.60, 2,489,437.20 and 1,300,632.80

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Solution

The fourth proportional to 1,660,661.60, 2,489,437.20 and 1,300,632.80 is: 1,949,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,661.60 : 2,489,437.20 = 1,300,632.80 : x
  2. Step 2: Convert to fraction form
    1,660,661.60/2,489,437.20 = 1,300,632.80/x
  3. Step 3: Cross multiply
    1,660,661.60x = 2,489,437.20 × 1,300,632.80
  4. Step 4: Simplify right side
    1,660,661.60x = 3,237,843,675,860.16
  5. Step 5: Solve for x
    x = 3,237,843,675,860.16/1,660,661.60
  6. Step 6: Final answer
    x = 1,949,731.16

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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.