Finding the Fourth Proportional to 752,963.09, 1,129,327.55 and 247,520.70
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Solution
The fourth proportional to 752,963.09, 1,129,327.55 and 247,520.70 is: 371,242.56
Step by Step Solution
- Step 1: Write the proportion equation
752,963.09 : 1,129,327.55 = 247,520.70 : x - Step 2: Convert to fraction form
752,963.09/1,129,327.55 = 247,520.70/x - Step 3: Cross multiply
752,963.09x = 1,129,327.55 × 247,520.70 - Step 4: Simplify right side
752,963.09x = 279,531,944,467.68 - Step 5: Solve for x
x = 279,531,944,467.68/752,963.09 - Step 6: Final answer
x = 371,242.56
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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.