Finding the Fourth Proportional to 987,635.98, 1,363,048.26 and 557,943.79
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Solution
The fourth proportional to 987,635.98, 1,363,048.26 and 557,943.79 is: 770,024.92
Step by Step Solution
- Step 1: Write the proportion equation
987,635.98 : 1,363,048.26 = 557,943.79 : x - Step 2: Convert to fraction form
987,635.98/1,363,048.26 = 557,943.79/x - Step 3: Cross multiply
987,635.98x = 1,363,048.26 × 557,943.79 - Step 4: Simplify right side
987,635.98x = 760,504,313,900.76 - Step 5: Solve for x
x = 760,504,313,900.76/987,635.98 - Step 6: Final answer
x = 770,024.92
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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.