Home / 1,325,131.44-1,985,189.40-783,766.32

Finding the Fourth Proportional to 1,325,131.44, 1,985,189.40 and 783,766.32

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Solution

The fourth proportional to 1,325,131.44, 1,985,189.40 and 783,766.32 is: 1,174,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,131.44 : 1,985,189.40 = 783,766.32 : x
  2. Step 2: Convert to fraction form
    1,325,131.44/1,985,189.40 = 783,766.32/x
  3. Step 3: Cross multiply
    1,325,131.44x = 1,985,189.40 × 783,766.32
  4. Step 4: Simplify right side
    1,325,131.44x = 1,555,924,590,541.01
  5. Step 5: Solve for x
    x = 1,555,924,590,541.01/1,325,131.44
  6. Step 6: Final answer
    x = 1,174,166.23

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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.