Finding the Fourth Proportional to 1,207,948.95, 1,811,918.70 and 309,389.49
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Solution
The fourth proportional to 1,207,948.95, 1,811,918.70 and 309,389.49 is: 464,083.02
Step by Step Solution
- Step 1: Write the proportion equation
1,207,948.95 : 1,811,918.70 = 309,389.49 : x - Step 2: Convert to fraction form
1,207,948.95/1,811,918.70 = 309,389.49/x - Step 3: Cross multiply
1,207,948.95x = 1,811,918.70 × 309,389.49 - Step 4: Simplify right side
1,207,948.95x = 560,588,602,514.46 - Step 5: Solve for x
x = 560,588,602,514.46/1,207,948.95 - Step 6: Final answer
x = 464,083.02
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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.