Finding the Fourth Proportional to 987,932.19, 1,363,347.81 and 535,223.19
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Solution
The fourth proportional to 987,932.19, 1,363,347.81 and 535,223.19 is: 738,608.75
Step by Step Solution
- Step 1: Write the proportion equation
987,932.19 : 1,363,347.81 = 535,223.19 : x - Step 2: Convert to fraction form
987,932.19/1,363,347.81 = 535,223.19/x - Step 3: Cross multiply
987,932.19x = 1,363,347.81 × 535,223.19 - Step 4: Simplify right side
987,932.19x = 729,695,363,947.71 - Step 5: Solve for x
x = 729,695,363,947.71/987,932.19 - Step 6: Final answer
x = 738,608.75
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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.