Finding the Fourth Proportional to 561,126.68, 774,354.84 and 306,478.48
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Solution
The fourth proportional to 561,126.68, 774,354.84 and 306,478.48 is: 422,940.31
Step by Step Solution
- Step 1: Write the proportion equation
561,126.68 : 774,354.84 = 306,478.48 : x - Step 2: Convert to fraction form
561,126.68/774,354.84 = 306,478.48/x - Step 3: Cross multiply
561,126.68x = 774,354.84 × 306,478.48 - Step 4: Simplify right side
561,126.68x = 237,323,094,343.84 - Step 5: Solve for x
x = 237,323,094,343.84/561,126.68 - Step 6: Final answer
x = 422,940.31
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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.