Finding the Fourth Proportional to 1,438,716.24, 1,985,428.64 and 794,136.72
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Solution
The fourth proportional to 1,438,716.24, 1,985,428.64 and 794,136.72 is: 1,095,908.80
Step by Step Solution
- Step 1: Write the proportion equation
1,438,716.24 : 1,985,428.64 = 794,136.72 : x - Step 2: Convert to fraction form
1,438,716.24/1,985,428.64 = 794,136.72/x - Step 3: Cross multiply
1,438,716.24x = 1,985,428.64 × 794,136.72 - Step 4: Simplify right side
1,438,716.24x = 1,576,701,787,963.66 - Step 5: Solve for x
x = 1,576,701,787,963.66/1,438,716.24 - Step 6: Final answer
x = 1,095,908.80
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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.