Finding the Fourth Proportional to 2,188,286.42, 3,020,470.36 and 1,270,723.28
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Solution
The fourth proportional to 2,188,286.42, 3,020,470.36 and 1,270,723.28 is: 1,753,966.92
Step by Step Solution
- Step 1: Write the proportion equation
2,188,286.42 : 3,020,470.36 = 1,270,723.28 : x - Step 2: Convert to fraction form
2,188,286.42/3,020,470.36 = 1,270,723.28/x - Step 3: Cross multiply
2,188,286.42x = 3,020,470.36 × 1,270,723.28 - Step 4: Simplify right side
2,188,286.42x = 3,838,181,984,722.82 - Step 5: Solve for x
x = 3,838,181,984,722.82/2,188,286.42 - Step 6: Final answer
x = 1,753,966.92
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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.