Finding the Fourth Proportional to 548,638.92, 757,178.69 and 316,073.75
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Solution
The fourth proportional to 548,638.92, 757,178.69 and 316,073.75 is: 436,214.59
Step by Step Solution
- Step 1: Write the proportion equation
548,638.92 : 757,178.69 = 316,073.75 : x - Step 2: Convert to fraction form
548,638.92/757,178.69 = 316,073.75/x - Step 3: Cross multiply
548,638.92x = 757,178.69 × 316,073.75 - Step 4: Simplify right side
548,638.92x = 239,324,302,602.13 - Step 5: Solve for x
x = 239,324,302,602.13/548,638.92 - Step 6: Final answer
x = 436,214.59
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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.