Finding the Fourth Proportional to 561,126.20, 774,354.15 and 306,477.99
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Solution
The fourth proportional to 561,126.20, 774,354.15 and 306,477.99 is: 422,939.63
Step by Step Solution
- Step 1: Write the proportion equation
561,126.20 : 774,354.15 = 306,477.99 : x - Step 2: Convert to fraction form
561,126.20/774,354.15 = 306,477.99/x - Step 3: Cross multiply
561,126.20x = 774,354.15 × 306,477.99 - Step 4: Simplify right side
561,126.20x = 237,322,503,440.16 - Step 5: Solve for x
x = 237,322,503,440.16/561,126.20 - Step 6: Final answer
x = 422,939.63
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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.