Finding the Fourth Proportional to 2,109,158.91, 3,162,332.20 and 688,716.99
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Solution
The fourth proportional to 2,109,158.91, 3,162,332.20 and 688,716.99 is: 1,032,616.32
Step by Step Solution
- Step 1: Write the proportion equation
2,109,158.91 : 3,162,332.20 = 688,716.99 : x - Step 2: Convert to fraction form
2,109,158.91/3,162,332.20 = 688,716.99/x - Step 3: Cross multiply
2,109,158.91x = 3,162,332.20 × 688,716.99 - Step 4: Simplify right side
2,109,158.91x = 2,177,951,914,164.08 - Step 5: Solve for x
x = 2,177,951,914,164.08/2,109,158.91 - Step 6: Final answer
x = 1,032,616.32
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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.