Finding the Fourth Proportional to 1,331,057.10, 1,837,235.10 and 787,381.91
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Solution
The fourth proportional to 1,331,057.10, 1,837,235.10 and 787,381.91 is: 1,086,809.64
Step by Step Solution
- Step 1: Write the proportion equation
1,331,057.10 : 1,837,235.10 = 787,381.91 : x - Step 2: Convert to fraction form
1,331,057.10/1,837,235.10 = 787,381.91/x - Step 3: Cross multiply
1,331,057.10x = 1,837,235.10 × 787,381.91 - Step 4: Simplify right side
1,331,057.10x = 1,446,605,682,157.04 - Step 5: Solve for x
x = 1,446,605,682,157.04/1,331,057.10 - Step 6: Final answer
x = 1,086,809.64
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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.