Finding the Fourth Proportional to 992,217.94, 1,488,186.80 and 318,211.68
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Solution
The fourth proportional to 992,217.94, 1,488,186.80 and 318,211.68 is: 477,272.59
Step by Step Solution
- Step 1: Write the proportion equation
992,217.94 : 1,488,186.80 = 318,211.68 : x - Step 2: Convert to fraction form
992,217.94/1,488,186.80 = 318,211.68/x - Step 3: Cross multiply
992,217.94x = 1,488,186.80 × 318,211.68 - Step 4: Simplify right side
992,217.94x = 473,558,421,781.82 - Step 5: Solve for x
x = 473,558,421,781.82/992,217.94 - Step 6: Final answer
x = 477,272.59
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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.