Finding the Fourth Proportional to 1,207,511.99, 1,666,331.43 and 691,248.47
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Solution
The fourth proportional to 1,207,511.99, 1,666,331.43 and 691,248.47 is: 953,902.78
Step by Step Solution
- Step 1: Write the proportion equation
1,207,511.99 : 1,666,331.43 = 691,248.47 : x - Step 2: Convert to fraction form
1,207,511.99/1,666,331.43 = 691,248.47/x - Step 3: Cross multiply
1,207,511.99x = 1,666,331.43 × 691,248.47 - Step 4: Simplify right side
1,207,511.99x = 1,151,849,040,576.57 - Step 5: Solve for x
x = 1,151,849,040,576.57/1,207,511.99 - Step 6: Final answer
x = 953,902.78
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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.