Finding the Fourth Proportional to 975,107.36, 1,345,640.45 and 545,387.18
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Solution
The fourth proportional to 975,107.36, 1,345,640.45 and 545,387.18 is: 752,629.99
Step by Step Solution
- Step 1: Write the proportion equation
975,107.36 : 1,345,640.45 = 545,387.18 : x - Step 2: Convert to fraction form
975,107.36/1,345,640.45 = 545,387.18/x - Step 3: Cross multiply
975,107.36x = 1,345,640.45 × 545,387.18 - Step 4: Simplify right side
975,107.36x = 733,895,040,864.29 - Step 5: Solve for x
x = 733,895,040,864.29/975,107.36 - Step 6: Final answer
x = 752,629.99
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1.5x scale
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.