Finding the Fourth Proportional to 1,390,669.14, 2,083,198.88 and 1,165,397.20
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Solution
The fourth proportional to 1,390,669.14, 2,083,198.88 and 1,165,397.20 is: 1,745,745.32
Step by Step Solution
- Step 1: Write the proportion equation
1,390,669.14 : 2,083,198.88 = 1,165,397.20 : x - Step 2: Convert to fraction form
1,390,669.14/2,083,198.88 = 1,165,397.20/x - Step 3: Cross multiply
1,390,669.14x = 2,083,198.88 × 1,165,397.20 - Step 4: Simplify right side
1,390,669.14x = 2,427,754,135,968.15 - Step 5: Solve for x
x = 2,427,754,135,968.15/1,390,669.14 - Step 6: Final answer
x = 1,745,745.32
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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.