Finding the Fourth Proportional to 561,039.02, 774,236.68 and 306,390.20
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Solution
The fourth proportional to 561,039.02, 774,236.68 and 306,390.20 is: 422,820.02
Step by Step Solution
- Step 1: Write the proportion equation
561,039.02 : 774,236.68 = 306,390.20 : x - Step 2: Convert to fraction form
561,039.02/774,236.68 = 306,390.20/x - Step 3: Cross multiply
561,039.02x = 774,236.68 × 306,390.20 - Step 4: Simplify right side
561,039.02x = 237,218,531,232.54 - Step 5: Solve for x
x = 237,218,531,232.54/561,039.02 - Step 6: Final answer
x = 422,820.02
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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.