Finding the Fourth Proportional to 1,310,731.38, 1,966,167.14 and 412,243.18
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Solution
The fourth proportional to 1,310,731.38, 1,966,167.14 and 412,243.18 is: 618,386.80
Step by Step Solution
- Step 1: Write the proportion equation
1,310,731.38 : 1,966,167.14 = 412,243.18 : x - Step 2: Convert to fraction form
1,310,731.38/1,966,167.14 = 412,243.18/x - Step 3: Cross multiply
1,310,731.38x = 1,966,167.14 × 412,243.18 - Step 4: Simplify right side
1,310,731.38x = 810,538,987,228.47 - Step 5: Solve for x
x = 810,538,987,228.47/1,310,731.38 - Step 6: Final answer
x = 618,386.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.