Finding the Fourth Proportional to 1,115,139.80, 1,674,021.90 and 1,107,266.60
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Solution
The fourth proportional to 1,115,139.80, 1,674,021.90 and 1,107,266.60 is: 1,662,202.84
Step by Step Solution
- Step 1: Write the proportion equation
1,115,139.80 : 1,674,021.90 = 1,107,266.60 : x - Step 2: Convert to fraction form
1,115,139.80/1,674,021.90 = 1,107,266.60/x - Step 3: Cross multiply
1,115,139.80x = 1,674,021.90 × 1,107,266.60 - Step 4: Simplify right side
1,115,139.80x = 1,853,588,537,538.54 - Step 5: Solve for x
x = 1,853,588,537,538.54/1,115,139.80 - Step 6: Final answer
x = 1,662,202.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.