Finding the Fourth Proportional to 1,116,862.60, 1,676,135.88 and 818,108.68
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Solution
The fourth proportional to 1,116,862.60, 1,676,135.88 and 818,108.68 is: 1,227,779.78
Step by Step Solution
- Step 1: Write the proportion equation
1,116,862.60 : 1,676,135.88 = 818,108.68 : x - Step 2: Convert to fraction form
1,116,862.60/1,676,135.88 = 818,108.68/x - Step 3: Cross multiply
1,116,862.60x = 1,676,135.88 × 818,108.68 - Step 4: Simplify right side
1,116,862.60x = 1,371,261,312,287.44 - Step 5: Solve for x
x = 1,371,261,312,287.44/1,116,862.60 - Step 6: Final answer
x = 1,227,779.78
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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.