Finding the Fourth Proportional to 734,378.76, 1,013,439.96 and 412,088.13
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Solution
The fourth proportional to 734,378.76, 1,013,439.96 and 412,088.13 is: 568,680.09
Step by Step Solution
- Step 1: Write the proportion equation
734,378.76 : 1,013,439.96 = 412,088.13 : x - Step 2: Convert to fraction form
734,378.76/1,013,439.96 = 412,088.13/x - Step 3: Cross multiply
734,378.76x = 1,013,439.96 × 412,088.13 - Step 4: Simplify right side
734,378.76x = 417,626,577,983.68 - Step 5: Solve for x
x = 417,626,577,983.68/734,378.76 - Step 6: Final answer
x = 568,680.09
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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.