Finding the Fourth Proportional to 531,412.96, 733,342.80 and 289,691.68
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Solution
The fourth proportional to 531,412.96, 733,342.80 and 289,691.68 is: 399,770.66
Step by Step Solution
- Step 1: Write the proportion equation
531,412.96 : 733,342.80 = 289,691.68 : x - Step 2: Convert to fraction form
531,412.96/733,342.80 = 289,691.68/x - Step 3: Cross multiply
531,412.96x = 733,342.80 × 289,691.68 - Step 4: Simplify right side
531,412.96x = 212,443,307,747.90 - Step 5: Solve for x
x = 212,443,307,747.90/531,412.96 - Step 6: Final answer
x = 399,770.66
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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.