Finding the Fourth Proportional to 1,296,963.63, 1,789,839.99 and 813,549.15
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Solution
The fourth proportional to 1,296,963.63, 1,789,839.99 and 813,549.15 is: 1,122,716.76
Step by Step Solution
- Step 1: Write the proportion equation
1,296,963.63 : 1,789,839.99 = 813,549.15 : x - Step 2: Convert to fraction form
1,296,963.63/1,789,839.99 = 813,549.15/x - Step 3: Cross multiply
1,296,963.63x = 1,789,839.99 × 813,549.15 - Step 4: Simplify right side
1,296,963.63x = 1,456,122,802,500.51 - Step 5: Solve for x
x = 1,456,122,802,500.51/1,296,963.63 - Step 6: Final answer
x = 1,122,716.76
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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.