Finding the Fourth Proportional to 1,247,539.99, 1,721,603.98 and 674,578.79
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Solution
The fourth proportional to 1,247,539.99, 1,721,603.98 and 674,578.79 is: 930,918.08
Step by Step Solution
- Step 1: Write the proportion equation
1,247,539.99 : 1,721,603.98 = 674,578.79 : x - Step 2: Convert to fraction form
1,247,539.99/1,721,603.98 = 674,578.79/x - Step 3: Cross multiply
1,247,539.99x = 1,721,603.98 × 674,578.79 - Step 4: Simplify right side
1,247,539.99x = 1,161,357,537,114.17 - Step 5: Solve for x
x = 1,161,357,537,114.17/1,247,539.99 - Step 6: Final answer
x = 930,918.08
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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.