Finding the Fourth Proportional to 561,370.50, 774,708.30 and 306,738.09
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Solution
The fourth proportional to 561,370.50, 774,708.30 and 306,738.09 is: 423,307.86
Step by Step Solution
- Step 1: Write the proportion equation
561,370.50 : 774,708.30 = 306,738.09 : x - Step 2: Convert to fraction form
561,370.50/774,708.30 = 306,738.09/x - Step 3: Cross multiply
561,370.50x = 774,708.30 × 306,738.09 - Step 4: Simplify right side
561,370.50x = 237,632,544,249.15 - Step 5: Solve for x
x = 237,632,544,249.15/561,370.50 - Step 6: Final answer
x = 423,307.86
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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.