Finding the Fourth Proportional to 877,511.75, 1,316,267.63 and 212,663.75
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Solution
The fourth proportional to 877,511.75, 1,316,267.63 and 212,663.75 is: 318,995.63
Step by Step Solution
- Step 1: Write the proportion equation
877,511.75 : 1,316,267.63 = 212,663.75 : x - Step 2: Convert to fraction form
877,511.75/1,316,267.63 = 212,663.75/x - Step 3: Cross multiply
877,511.75x = 1,316,267.63 × 212,663.75 - Step 4: Simplify right side
877,511.75x = 279,922,409,136.09 - Step 5: Solve for x
x = 279,922,409,136.09/877,511.75 - Step 6: Final answer
x = 318,995.63
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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.