Finding the Fourth Proportional to 1,885,972.88, 2,603,143.17 and 1,161,428.09
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Solution
The fourth proportional to 1,885,972.88, 2,603,143.17 and 1,161,428.09 is: 1,603,079.03
Step by Step Solution
- Step 1: Write the proportion equation
1,885,972.88 : 2,603,143.17 = 1,161,428.09 : x - Step 2: Convert to fraction form
1,885,972.88/2,603,143.17 = 1,161,428.09/x - Step 3: Cross multiply
1,885,972.88x = 2,603,143.17 × 1,161,428.09 - Step 4: Simplify right side
1,885,972.88x = 3,023,363,586,913.93 - Step 5: Solve for x
x = 3,023,363,586,913.93/1,885,972.88 - Step 6: Final answer
x = 1,603,079.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.