Finding the Fourth Proportional to 378,047.70, 566,415.45 and 318,998.70
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Solution
The fourth proportional to 378,047.70, 566,415.45 and 318,998.70 is: 477,944.43
Step by Step Solution
- Step 1: Write the proportion equation
378,047.70 : 566,415.45 = 318,998.70 : x - Step 2: Convert to fraction form
378,047.70/566,415.45 = 318,998.70/x - Step 3: Cross multiply
378,047.70x = 566,415.45 × 318,998.70 - Step 4: Simplify right side
378,047.70x = 180,685,792,209.92 - Step 5: Solve for x
x = 180,685,792,209.92/378,047.70 - Step 6: Final answer
x = 477,944.43
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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.