Finding the Fourth Proportional to 561,577.44, 774,976.78 and 306,928.63
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Solution
The fourth proportional to 561,577.44, 774,976.78 and 306,928.63 is: 423,561.46
Step by Step Solution
- Step 1: Write the proportion equation
561,577.44 : 774,976.78 = 306,928.63 : x - Step 2: Convert to fraction form
561,577.44/774,976.78 = 306,928.63/x - Step 3: Cross multiply
561,577.44x = 774,976.78 × 306,928.63 - Step 4: Simplify right side
561,577.44x = 237,862,561,367.21 - Step 5: Solve for x
x = 237,862,561,367.21/561,577.44 - Step 6: Final answer
x = 423,561.46
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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.