Finding the Fourth Proportional to 1,120,689.12, 1,546,488 and 637,371.84
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Solution
The fourth proportional to 1,120,689.12, 1,546,488 and 637,371.84 is: 879,537.32
Step by Step Solution
- Step 1: Write the proportion equation
1,120,689.12 : 1,546,488 = 637,371.84 : x - Step 2: Convert to fraction form
1,120,689.12/1,546,488 = 637,371.84/x - Step 3: Cross multiply
1,120,689.12x = 1,546,488 × 637,371.84 - Step 4: Simplify right side
1,120,689.12x = 985,687,902,097.92 - Step 5: Solve for x
x = 985,687,902,097.92/1,120,689.12 - Step 6: Final answer
x = 879,537.32
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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.