Finding the Fourth Proportional to 1,118,157.62, 1,684,705.13 and 1,011,678.05
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Solution
The fourth proportional to 1,118,157.62, 1,684,705.13 and 1,011,678.05 is: 1,524,274.56
Step by Step Solution
- Step 1: Write the proportion equation
1,118,157.62 : 1,684,705.13 = 1,011,678.05 : x - Step 2: Convert to fraction form
1,118,157.62/1,684,705.13 = 1,011,678.05/x - Step 3: Cross multiply
1,118,157.62x = 1,684,705.13 × 1,011,678.05 - Step 4: Simplify right side
1,118,157.62x = 1,704,379,203,690.56 - Step 5: Solve for x
x = 1,704,379,203,690.56/1,118,157.62 - Step 6: Final answer
x = 1,524,274.56
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.