Finding the Fourth Proportional to 2,875,428.30, 4,312,404.09 and 853,193.88
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Solution
The fourth proportional to 2,875,428.30, 4,312,404.09 and 853,193.88 is: 1,279,571.73
Step by Step Solution
- Step 1: Write the proportion equation
2,875,428.30 : 4,312,404.09 = 853,193.88 : x - Step 2: Convert to fraction form
2,875,428.30/4,312,404.09 = 853,193.88/x - Step 3: Cross multiply
2,875,428.30x = 4,312,404.09 × 853,193.88 - Step 4: Simplify right side
2,875,428.30x = 3,679,316,777,674.97 - Step 5: Solve for x
x = 3,679,316,777,674.97/2,875,428.30 - Step 6: Final answer
x = 1,279,571.73
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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.