Finding the Fourth Proportional to 987,929.19, 1,363,343.67 and 535,220.19
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Solution
The fourth proportional to 987,929.19, 1,363,343.67 and 535,220.19 is: 738,604.61
Step by Step Solution
- Step 1: Write the proportion equation
987,929.19 : 1,363,343.67 = 535,220.19 : x - Step 2: Convert to fraction form
987,929.19/1,363,343.67 = 535,220.19/x - Step 3: Cross multiply
987,929.19x = 1,363,343.67 × 535,220.19 - Step 4: Simplify right side
987,929.19x = 729,689,058,092.70 - Step 5: Solve for x
x = 729,689,058,092.70/987,929.19 - Step 6: Final answer
x = 738,604.61
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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.