Finding the Fourth Proportional to 986,474.88, 1,361,340 and 556,773.12
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Solution
The fourth proportional to 986,474.88, 1,361,340 and 556,773.12 is: 768,349.54
Step by Step Solution
- Step 1: Write the proportion equation
986,474.88 : 1,361,340 = 556,773.12 : x - Step 2: Convert to fraction form
986,474.88/1,361,340 = 556,773.12/x - Step 3: Cross multiply
986,474.88x = 1,361,340 × 556,773.12 - Step 4: Simplify right side
986,474.88x = 757,957,519,180.80 - Step 5: Solve for x
x = 757,957,519,180.80/986,474.88 - Step 6: Final answer
x = 768,349.54
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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.