Finding the Fourth Proportional to 987,636.37, 1,363,048.81 and 557,944.18
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Solution
The fourth proportional to 987,636.37, 1,363,048.81 and 557,944.18 is: 770,025.46
Step by Step Solution
- Step 1: Write the proportion equation
987,636.37 : 1,363,048.81 = 557,944.18 : x - Step 2: Convert to fraction form
987,636.37/1,363,048.81 = 557,944.18/x - Step 3: Cross multiply
987,636.37x = 1,363,048.81 × 557,944.18 - Step 4: Simplify right side
987,636.37x = 760,505,147,805.71 - Step 5: Solve for x
x = 760,505,147,805.71/987,636.37 - Step 6: Final answer
x = 770,025.46
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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.