Finding the Fourth Proportional to 1,695,473.19, 2,339,755.77 and 921,107.07
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Solution
The fourth proportional to 1,695,473.19, 2,339,755.77 and 921,107.07 is: 1,271,129.26
Step by Step Solution
- Step 1: Write the proportion equation
1,695,473.19 : 2,339,755.77 = 921,107.07 : x - Step 2: Convert to fraction form
1,695,473.19/2,339,755.77 = 921,107.07/x - Step 3: Cross multiply
1,695,473.19x = 2,339,755.77 × 921,107.07 - Step 4: Simplify right side
1,695,473.19x = 2,155,165,576,500.36 - Step 5: Solve for x
x = 2,155,165,576,500.36/1,695,473.19 - Step 6: Final answer
x = 1,271,129.26
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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.