Finding the Fourth Proportional to 561,130.20, 774,359.67 and 306,481.99
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Solution
The fourth proportional to 561,130.20, 774,359.67 and 306,481.99 is: 422,945.14
Step by Step Solution
- Step 1: Write the proportion equation
561,130.20 : 774,359.67 = 306,481.99 : x - Step 2: Convert to fraction form
561,130.20/774,359.67 = 306,481.99/x - Step 3: Cross multiply
561,130.20x = 774,359.67 × 306,481.99 - Step 4: Simplify right side
561,130.20x = 237,327,292,637.34 - Step 5: Solve for x
x = 237,327,292,637.34/561,130.20 - Step 6: Final answer
x = 422,945.14
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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.