Finding the Fourth Proportional to 820,426.08, 1,230,769.26 and 347,115
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Solution
The fourth proportional to 820,426.08, 1,230,769.26 and 347,115 is: 520,727.56
Step by Step Solution
- Step 1: Write the proportion equation
820,426.08 : 1,230,769.26 = 347,115 : x - Step 2: Convert to fraction form
820,426.08/1,230,769.26 = 347,115/x - Step 3: Cross multiply
820,426.08x = 1,230,769.26 × 347,115 - Step 4: Simplify right side
820,426.08x = 427,218,471,684.90 - Step 5: Solve for x
x = 427,218,471,684.90/820,426.08 - Step 6: Final answer
x = 520,727.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.