Finding the Fourth Proportional to 2,135,612.12, 2,947,105.32 and 1,168,722.92
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Solution
The fourth proportional to 2,135,612.12, 2,947,105.32 and 1,168,722.92 is: 1,612,816.06
Step by Step Solution
- Step 1: Write the proportion equation
2,135,612.12 : 2,947,105.32 = 1,168,722.92 : x - Step 2: Convert to fraction form
2,135,612.12/2,947,105.32 = 1,168,722.92/x - Step 3: Cross multiply
2,135,612.12x = 2,947,105.32 × 1,168,722.92 - Step 4: Simplify right side
2,135,612.12x = 3,444,349,535,137.93 - Step 5: Solve for x
x = 3,444,349,535,137.93/2,135,612.12 - Step 6: Final answer
x = 1,612,816.06
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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.