Finding the Fourth Proportional to 1,991,640.96, 2,748,452.04 and 1,132,201.08
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Solution
The fourth proportional to 1,991,640.96, 2,748,452.04 and 1,132,201.08 is: 1,562,430.39
Step by Step Solution
- Step 1: Write the proportion equation
1,991,640.96 : 2,748,452.04 = 1,132,201.08 : x - Step 2: Convert to fraction form
1,991,640.96/2,748,452.04 = 1,132,201.08/x - Step 3: Cross multiply
1,991,640.96x = 2,748,452.04 × 1,132,201.08 - Step 4: Simplify right side
1,991,640.96x = 3,111,800,368,016.20 - Step 5: Solve for x
x = 3,111,800,368,016.20/1,991,640.96 - Step 6: Final answer
x = 1,562,430.39
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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.