Finding the Fourth Proportional to 1,420,603.62, 2,130,890.84 and 821,183.37
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Solution
The fourth proportional to 1,420,603.62, 2,130,890.84 and 821,183.37 is: 1,231,766.62
Step by Step Solution
- Step 1: Write the proportion equation
1,420,603.62 : 2,130,890.84 = 821,183.37 : x - Step 2: Convert to fraction form
1,420,603.62/2,130,890.84 = 821,183.37/x - Step 3: Cross multiply
1,420,603.62x = 2,130,890.84 × 821,183.37 - Step 4: Simplify right side
1,420,603.62x = 1,749,852,121,093.33 - Step 5: Solve for x
x = 1,749,852,121,093.33/1,420,603.62 - Step 6: Final answer
x = 1,231,766.62
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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.