Finding the Fourth Proportional to 987,918.10, 1,363,318.41 and 535,208.02
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Solution
The fourth proportional to 987,918.10, 1,363,318.41 and 535,208.02 is: 738,582.43
Step by Step Solution
- Step 1: Write the proportion equation
987,918.10 : 1,363,318.41 = 535,208.02 : x - Step 2: Convert to fraction form
987,918.10/1,363,318.41 = 535,208.02/x - Step 3: Cross multiply
987,918.10x = 1,363,318.41 × 535,208.02 - Step 4: Simplify right side
987,918.10x = 729,658,946,845.65 - Step 5: Solve for x
x = 729,658,946,845.65/987,918.10 - Step 6: Final answer
x = 738,582.43
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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.