Finding the Fourth Proportional to 781,048.77, 1,171,343.49 and 331,766.07
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Solution
The fourth proportional to 781,048.77, 1,171,343.49 and 331,766.07 is: 497,551.55
Step by Step Solution
- Step 1: Write the proportion equation
781,048.77 : 1,171,343.49 = 331,766.07 : x - Step 2: Convert to fraction form
781,048.77/1,171,343.49 = 331,766.07/x - Step 3: Cross multiply
781,048.77x = 1,171,343.49 × 331,766.07 - Step 4: Simplify right side
781,048.77x = 388,612,026,297.38 - Step 5: Solve for x
x = 388,612,026,297.38/781,048.77 - Step 6: Final answer
x = 497,551.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.