Finding the Fourth Proportional to 1,331,212.50, 1,837,202.49 and 787,523.31
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Solution
The fourth proportional to 1,331,212.50, 1,837,202.49 and 787,523.31 is: 1,086,858.62
Step by Step Solution
- Step 1: Write the proportion equation
1,331,212.50 : 1,837,202.49 = 787,523.31 : x - Step 2: Convert to fraction form
1,331,212.50/1,837,202.49 = 787,523.31/x - Step 3: Cross multiply
1,331,212.50x = 1,837,202.49 × 787,523.31 - Step 4: Simplify right side
1,331,212.50x = 1,446,839,786,065.04 - Step 5: Solve for x
x = 1,446,839,786,065.04/1,331,212.50 - Step 6: Final answer
x = 1,086,858.62
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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.