Finding the Fourth Proportional to 1,109,623.68, 1,531,193.43 and 679,845.36
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Solution
The fourth proportional to 1,109,623.68, 1,531,193.43 and 679,845.36 is: 938,133.14
Step by Step Solution
- Step 1: Write the proportion equation
1,109,623.68 : 1,531,193.43 = 679,845.36 : x - Step 2: Convert to fraction form
1,109,623.68/1,531,193.43 = 679,845.36/x - Step 3: Cross multiply
1,109,623.68x = 1,531,193.43 × 679,845.36 - Step 4: Simplify right side
1,109,623.68x = 1,040,974,748,647.98 - Step 5: Solve for x
x = 1,040,974,748,647.98/1,109,623.68 - Step 6: Final answer
x = 938,133.14
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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.