Finding the Fourth Proportional to 557,364.74, 769,137.62 and 315,649.05
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Solution
The fourth proportional to 557,364.74, 769,137.62 and 315,649.05 is: 435,581.12
Step by Step Solution
- Step 1: Write the proportion equation
557,364.74 : 769,137.62 = 315,649.05 : x - Step 2: Convert to fraction form
557,364.74/769,137.62 = 315,649.05/x - Step 3: Cross multiply
557,364.74x = 769,137.62 × 315,649.05 - Step 4: Simplify right side
557,364.74x = 242,777,559,861.38 - Step 5: Solve for x
x = 242,777,559,861.38/557,364.74 - Step 6: Final answer
x = 435,581.12
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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.