Finding the Fourth Proportional to 986,343.44, 1,361,225.80 and 556,661.12
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Solution
The fourth proportional to 986,343.44, 1,361,225.80 and 556,661.12 is: 768,232.90
Step by Step Solution
- Step 1: Write the proportion equation
986,343.44 : 1,361,225.80 = 556,661.12 : x - Step 2: Convert to fraction form
986,343.44/1,361,225.80 = 556,661.12/x - Step 3: Cross multiply
986,343.44x = 1,361,225.80 × 556,661.12 - Step 4: Simplify right side
986,343.44x = 757,741,478,400.90 - Step 5: Solve for x
x = 757,741,478,400.90/986,343.44 - Step 6: Final answer
x = 768,232.90
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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.