Finding the Fourth Proportional to 487,299.12, 731,611.84 and 274,217.58
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Solution
The fourth proportional to 487,299.12, 731,611.84 and 274,217.58 is: 411,699.55
Step by Step Solution
- Step 1: Write the proportion equation
487,299.12 : 731,611.84 = 274,217.58 : x - Step 2: Convert to fraction form
487,299.12/731,611.84 = 274,217.58/x - Step 3: Cross multiply
487,299.12x = 731,611.84 × 274,217.58 - Step 4: Simplify right side
487,299.12x = 200,620,828,264.15 - Step 5: Solve for x
x = 200,620,828,264.15/487,299.12 - Step 6: Final answer
x = 411,699.55
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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.