Finding the Fourth Proportional to 561,126.70, 774,354.84 and 306,478.49
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Solution
The fourth proportional to 561,126.70, 774,354.84 and 306,478.49 is: 422,940.32
Step by Step Solution
- Step 1: Write the proportion equation
561,126.70 : 774,354.84 = 306,478.49 : x - Step 2: Convert to fraction form
561,126.70/774,354.84 = 306,478.49/x - Step 3: Cross multiply
561,126.70x = 774,354.84 × 306,478.49 - Step 4: Simplify right side
561,126.70x = 237,323,102,087.39 - Step 5: Solve for x
x = 237,323,102,087.39/561,126.70 - Step 6: Final answer
x = 422,940.32
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1.5x scale
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.