Finding the Fourth Proportional to 557,841.23, 769,817.93 and 316,169.53
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Solution
The fourth proportional to 557,841.23, 769,817.93 and 316,169.53 is: 436,312.26
Step by Step Solution
- Step 1: Write the proportion equation
557,841.23 : 769,817.93 = 316,169.53 : x - Step 2: Convert to fraction form
557,841.23/769,817.93 = 316,169.53/x - Step 3: Cross multiply
557,841.23x = 769,817.93 × 316,169.53 - Step 4: Simplify right side
557,841.23x = 243,392,969,608.28 - Step 5: Solve for x
x = 243,392,969,608.28/557,841.23 - Step 6: Final answer
x = 436,312.26
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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.