Finding the Fourth Proportional to 912,660.40, 1,366,366.20 and 558,366.40
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Solution
The fourth proportional to 912,660.40, 1,366,366.20 and 558,366.40 is: 835,943.99
Step by Step Solution
- Step 1: Write the proportion equation
912,660.40 : 1,366,366.20 = 558,366.40 : x - Step 2: Convert to fraction form
912,660.40/1,366,366.20 = 558,366.40/x - Step 3: Cross multiply
912,660.40x = 1,366,366.20 × 558,366.40 - Step 4: Simplify right side
912,660.40x = 762,932,976,175.68 - Step 5: Solve for x
x = 762,932,976,175.68/912,660.40 - Step 6: Final answer
x = 835,943.99
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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.