Finding the Fourth Proportional to 972,115.20, 1,340,979.84 and 569,629.44
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Solution
The fourth proportional to 972,115.20, 1,340,979.84 and 569,629.44 is: 785,772.71
Step by Step Solution
- Step 1: Write the proportion equation
972,115.20 : 1,340,979.84 = 569,629.44 : x - Step 2: Convert to fraction form
972,115.20/1,340,979.84 = 569,629.44/x - Step 3: Cross multiply
972,115.20x = 1,340,979.84 × 569,629.44 - Step 4: Simplify right side
972,115.20x = 763,861,595,310.49 - Step 5: Solve for x
x = 763,861,595,310.49/972,115.20 - Step 6: Final answer
x = 785,772.71
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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.