Finding the Fourth Proportional to 1,768,161.80, 2,652,242.70 and 1,325,793.80
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Solution
The fourth proportional to 1,768,161.80, 2,652,242.70 and 1,325,793.80 is: 1,988,690.70
Step by Step Solution
- Step 1: Write the proportion equation
1,768,161.80 : 2,652,242.70 = 1,325,793.80 : x - Step 2: Convert to fraction form
1,768,161.80/2,652,242.70 = 1,325,793.80/x - Step 3: Cross multiply
1,768,161.80x = 2,652,242.70 × 1,325,793.80 - Step 4: Simplify right side
1,768,161.80x = 3,516,326,927,755.26 - Step 5: Solve for x
x = 3,516,326,927,755.26/1,768,161.80 - Step 6: Final answer
x = 1,988,690.70
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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.