Finding the Fourth Proportional to 987,956.19, 1,363,380.93 and 535,247.19
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Solution
The fourth proportional to 987,956.19, 1,363,380.93 and 535,247.19 is: 738,641.87
Step by Step Solution
- Step 1: Write the proportion equation
987,956.19 : 1,363,380.93 = 535,247.19 : x - Step 2: Convert to fraction form
987,956.19/1,363,380.93 = 535,247.19/x - Step 3: Cross multiply
987,956.19x = 1,363,380.93 × 535,247.19 - Step 4: Simplify right side
987,956.19x = 729,745,811,682.09 - Step 5: Solve for x
x = 729,745,811,682.09/987,956.19 - Step 6: Final answer
x = 738,641.87
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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.