Finding the Fourth Proportional to 1,318,149.49, 1,974,031.29 and 912,204.19
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Solution
The fourth proportional to 1,318,149.49, 1,974,031.29 and 912,204.19 is: 1,366,096.66
Step by Step Solution
- Step 1: Write the proportion equation
1,318,149.49 : 1,974,031.29 = 912,204.19 : x - Step 2: Convert to fraction form
1,318,149.49/1,974,031.29 = 912,204.19/x - Step 3: Cross multiply
1,318,149.49x = 1,974,031.29 × 912,204.19 - Step 4: Simplify right side
1,318,149.49x = 1,800,719,613,929.11 - Step 5: Solve for x
x = 1,800,719,613,929.11/1,318,149.49 - Step 6: Final answer
x = 1,366,096.66
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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.