Finding the Fourth Proportional to 557,847.05, 769,845.17 and 316,121.58
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Solution
The fourth proportional to 557,847.05, 769,845.17 and 316,121.58 is: 436,256.99
Step by Step Solution
- Step 1: Write the proportion equation
557,847.05 : 769,845.17 = 316,121.58 : x - Step 2: Convert to fraction form
557,847.05/769,845.17 = 316,121.58/x - Step 3: Cross multiply
557,847.05x = 769,845.17 × 316,121.58 - Step 4: Simplify right side
557,847.05x = 243,364,673,678.39 - Step 5: Solve for x
x = 243,364,673,678.39/557,847.05 - Step 6: Final answer
x = 436,256.99
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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.