Finding the Fourth Proportional to 752,943.09, 1,129,175.16 and 247,387.56
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Solution
The fourth proportional to 752,943.09, 1,129,175.16 and 247,387.56 is: 371,002.66
Step by Step Solution
- Step 1: Write the proportion equation
752,943.09 : 1,129,175.16 = 247,387.56 : x - Step 2: Convert to fraction form
752,943.09/1,129,175.16 = 247,387.56/x - Step 3: Cross multiply
752,943.09x = 1,129,175.16 × 247,387.56 - Step 4: Simplify right side
752,943.09x = 279,343,887,645.01 - Step 5: Solve for x
x = 279,343,887,645.01/752,943.09 - Step 6: Final answer
x = 371,002.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.