Finding the Fourth Proportional to 1,138,282.56, 1,570,861.62 and 629,017.74
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Solution
The fourth proportional to 1,138,282.56, 1,570,861.62 and 629,017.74 is: 868,061.99
Step by Step Solution
- Step 1: Write the proportion equation
1,138,282.56 : 1,570,861.62 = 629,017.74 : x - Step 2: Convert to fraction form
1,138,282.56/1,570,861.62 = 629,017.74/x - Step 3: Cross multiply
1,138,282.56x = 1,570,861.62 × 629,017.74 - Step 4: Simplify right side
1,138,282.56x = 988,099,826,065.14 - Step 5: Solve for x
x = 988,099,826,065.14/1,138,282.56 - Step 6: Final answer
x = 868,061.99
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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.