Finding the Fourth Proportional to 389,043.24, 536,675.58 and 316,527.18
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Solution
The fourth proportional to 389,043.24, 536,675.58 and 316,527.18 is: 436,641.46
Step by Step Solution
- Step 1: Write the proportion equation
389,043.24 : 536,675.58 = 316,527.18 : x - Step 2: Convert to fraction form
389,043.24/536,675.58 = 316,527.18/x - Step 3: Cross multiply
389,043.24x = 536,675.58 × 316,527.18 - Step 4: Simplify right side
389,043.24x = 169,872,407,912.26 - Step 5: Solve for x
x = 169,872,407,912.26/389,043.24 - Step 6: Final answer
x = 436,641.46
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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.