Finding the Fourth Proportional to 1,093,885.20, 1,509,522.21 and 686,206.53
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Solution
The fourth proportional to 1,093,885.20, 1,509,522.21 and 686,206.53 is: 946,940.32
Step by Step Solution
- Step 1: Write the proportion equation
1,093,885.20 : 1,509,522.21 = 686,206.53 : x - Step 2: Convert to fraction form
1,093,885.20/1,509,522.21 = 686,206.53/x - Step 3: Cross multiply
1,093,885.20x = 1,509,522.21 × 686,206.53 - Step 4: Simplify right side
1,093,885.20x = 1,035,843,997,682.03 - Step 5: Solve for x
x = 1,035,843,997,682.03/1,093,885.20 - Step 6: Final answer
x = 946,940.32
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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.