Finding the Fourth Proportional to 721,947.09, 996,738.84 and 463,928.07
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Solution
The fourth proportional to 721,947.09, 996,738.84 and 463,928.07 is: 640,511.10
Step by Step Solution
- Step 1: Write the proportion equation
721,947.09 : 996,738.84 = 463,928.07 : x - Step 2: Convert to fraction form
721,947.09/996,738.84 = 463,928.07/x - Step 3: Cross multiply
721,947.09x = 996,738.84 × 463,928.07 - Step 4: Simplify right side
721,947.09x = 462,415,126,335.24 - Step 5: Solve for x
x = 462,415,126,335.24/721,947.09 - Step 6: Final answer
x = 640,511.10
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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.