Finding the Fourth Proportional to 420,763.92, 580,630.50 and 239,519.94
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Solution
The fourth proportional to 420,763.92, 580,630.50 and 239,519.94 is: 330,524.02
Step by Step Solution
- Step 1: Write the proportion equation
420,763.92 : 580,630.50 = 239,519.94 : x - Step 2: Convert to fraction form
420,763.92/580,630.50 = 239,519.94/x - Step 3: Cross multiply
420,763.92x = 580,630.50 × 239,519.94 - Step 4: Simplify right side
420,763.92x = 139,072,582,522.17 - Step 5: Solve for x
x = 139,072,582,522.17/420,763.92 - Step 6: Final answer
x = 330,524.02
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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.