Finding the Fourth Proportional to 1,172,370.36, 1,616,107.44 and 917,278.68
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Solution
The fourth proportional to 1,172,370.36, 1,616,107.44 and 917,278.68 is: 1,264,464.67
Step by Step Solution
- Step 1: Write the proportion equation
1,172,370.36 : 1,616,107.44 = 917,278.68 : x - Step 2: Convert to fraction form
1,172,370.36/1,616,107.44 = 917,278.68/x - Step 3: Cross multiply
1,172,370.36x = 1,616,107.44 × 917,278.68 - Step 4: Simplify right side
1,172,370.36x = 1,482,420,899,301.38 - Step 5: Solve for x
x = 1,482,420,899,301.38/1,172,370.36 - Step 6: Final answer
x = 1,264,464.67
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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.