Finding the Fourth Proportional to 752,512.10, 1,128,940.52 and 326,119.50
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Solution
The fourth proportional to 752,512.10, 1,128,940.52 and 326,119.50 is: 489,253.95
Step by Step Solution
- Step 1: Write the proportion equation
752,512.10 : 1,128,940.52 = 326,119.50 : x - Step 2: Convert to fraction form
752,512.10/1,128,940.52 = 326,119.50/x - Step 3: Cross multiply
752,512.10x = 1,128,940.52 × 326,119.50 - Step 4: Simplify right side
752,512.10x = 368,169,517,912.14 - Step 5: Solve for x
x = 368,169,517,912.14/752,512.10 - Step 6: Final answer
x = 489,253.95
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1.5x scale
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.