Finding the Fourth Proportional to 557,692.54, 769,613.67 and 316,021.12
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Solution
The fourth proportional to 557,692.54, 769,613.67 and 316,021.12 is: 436,107.99
Step by Step Solution
- Step 1: Write the proportion equation
557,692.54 : 769,613.67 = 316,021.12 : x - Step 2: Convert to fraction form
557,692.54/769,613.67 = 316,021.12/x - Step 3: Cross multiply
557,692.54x = 769,613.67 × 316,021.12 - Step 4: Simplify right side
557,692.54x = 243,214,173,960.71 - Step 5: Solve for x
x = 243,214,173,960.71/557,692.54 - Step 6: Final answer
x = 436,107.99
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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.