Finding the Fourth Proportional to 1,319,647.97, 1,989,360.87 and 1,231,762.97
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Solution
The fourth proportional to 1,319,647.97, 1,989,360.87 and 1,231,762.97 is: 1,856,874.79
Step by Step Solution
- Step 1: Write the proportion equation
1,319,647.97 : 1,989,360.87 = 1,231,762.97 : x - Step 2: Convert to fraction form
1,319,647.97/1,989,360.87 = 1,231,762.97/x - Step 3: Cross multiply
1,319,647.97x = 1,989,360.87 × 1,231,762.97 - Step 4: Simplify right side
1,319,647.97x = 2,450,421,043,686.18 - Step 5: Solve for x
x = 2,450,421,043,686.18/1,319,647.97 - Step 6: Final answer
x = 1,856,874.79
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.