Finding the Fourth Proportional to 3,552,517.28, 4,902,470.38 and 1,920,920.74
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Solution
The fourth proportional to 3,552,517.28, 4,902,470.38 and 1,920,920.74 is: 2,650,868.75
Step by Step Solution
- Step 1: Write the proportion equation
3,552,517.28 : 4,902,470.38 = 1,920,920.74 : x - Step 2: Convert to fraction form
3,552,517.28/4,902,470.38 = 1,920,920.74/x - Step 3: Cross multiply
3,552,517.28x = 4,902,470.38 × 1,920,920.74 - Step 4: Simplify right side
3,552,517.28x = 9,417,257,030,177.68 - Step 5: Solve for x
x = 9,417,257,030,177.68/3,552,517.28 - Step 6: Final answer
x = 2,650,868.75
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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.