Finding the Fourth Proportional to 1,318,538.88, 1,818,968.85 and 853,543.17
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Solution
The fourth proportional to 1,318,538.88, 1,818,968.85 and 853,543.17 is: 1,177,491.59
Step by Step Solution
- Step 1: Write the proportion equation
1,318,538.88 : 1,818,968.85 = 853,543.17 : x - Step 2: Convert to fraction form
1,318,538.88/1,818,968.85 = 853,543.17/x - Step 3: Cross multiply
1,318,538.88x = 1,818,968.85 × 853,543.17 - Step 4: Simplify right side
1,318,538.88x = 1,552,568,438,360.25 - Step 5: Solve for x
x = 1,552,568,438,360.25/1,318,538.88 - Step 6: Final answer
x = 1,177,491.59
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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.