Finding the Fourth Proportional to 1,091,194.60, 1,640,291.10 and 777,821.80
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Solution
The fourth proportional to 1,091,194.60, 1,640,291.10 and 777,821.80 is: 1,169,226.99
Step by Step Solution
- Step 1: Write the proportion equation
1,091,194.60 : 1,640,291.10 = 777,821.80 : x - Step 2: Convert to fraction form
1,091,194.60/1,640,291.10 = 777,821.80/x - Step 3: Cross multiply
1,091,194.60x = 1,640,291.10 × 777,821.80 - Step 4: Simplify right side
1,091,194.60x = 1,275,854,175,925.98 - Step 5: Solve for x
x = 1,275,854,175,925.98/1,091,194.60 - Step 6: Final answer
x = 1,169,226.99
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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.