Finding the Fourth Proportional to 1,325,874.96, 1,988,812.62 and 472,912.11
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Solution
The fourth proportional to 1,325,874.96, 1,988,812.62 and 472,912.11 is: 709,368.23
Step by Step Solution
- Step 1: Write the proportion equation
1,325,874.96 : 1,988,812.62 = 472,912.11 : x - Step 2: Convert to fraction form
1,325,874.96/1,988,812.62 = 472,912.11/x - Step 3: Cross multiply
1,325,874.96x = 1,988,812.62 × 472,912.11 - Step 4: Simplify right side
1,325,874.96x = 940,533,572,518.83 - Step 5: Solve for x
x = 940,533,572,518.83/1,325,874.96 - Step 6: Final answer
x = 709,368.23
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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.