Finding the Fourth Proportional to 561,129.20, 774,358.29 and 306,480.99
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Solution
The fourth proportional to 561,129.20, 774,358.29 and 306,480.99 is: 422,943.77
Step by Step Solution
- Step 1: Write the proportion equation
561,129.20 : 774,358.29 = 306,480.99 : x - Step 2: Convert to fraction form
561,129.20/774,358.29 = 306,480.99/x - Step 3: Cross multiply
561,129.20x = 774,358.29 × 306,480.99 - Step 4: Simplify right side
561,129.20x = 237,326,095,333.91 - Step 5: Solve for x
x = 237,326,095,333.91/561,129.20 - Step 6: Final answer
x = 422,943.77
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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.