Home / 1,447,992.56-1,991,143.86-1,256,673.80

Finding the Fourth Proportional to 1,447,992.56, 1,991,143.86 and 1,256,673.80

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Solution

The fourth proportional to 1,447,992.56, 1,991,143.86 and 1,256,673.80 is: 1,728,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,992.56 : 1,991,143.86 = 1,256,673.80 : x
  2. Step 2: Convert to fraction form
    1,447,992.56/1,991,143.86 = 1,256,673.80/x
  3. Step 3: Cross multiply
    1,447,992.56x = 1,991,143.86 × 1,256,673.80
  4. Step 4: Simplify right side
    1,447,992.56x = 2,502,218,321,158.20
  5. Step 5: Solve for x
    x = 2,502,218,321,158.20/1,447,992.56
  6. Step 6: Final answer
    x = 1,728,060.20

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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.