Finding the Fourth Proportional to 987,917.94, 1,363,328.10 and 535,208.94
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Solution
The fourth proportional to 987,917.94, 1,363,328.10 and 535,208.94 is: 738,589.06
Step by Step Solution
- Step 1: Write the proportion equation
987,917.94 : 1,363,328.10 = 535,208.94 : x - Step 2: Convert to fraction form
987,917.94/1,363,328.10 = 535,208.94/x - Step 3: Cross multiply
987,917.94x = 1,363,328.10 × 535,208.94 - Step 4: Simplify right side
987,917.94x = 729,665,387,273.21 - Step 5: Solve for x
x = 729,665,387,273.21/987,917.94 - Step 6: Final answer
x = 738,589.06
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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.