Finding the Fourth Proportional to 2,521,731.60, 3,479,986.19 and 1,375,811.95
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Solution
The fourth proportional to 2,521,731.60, 3,479,986.19 and 1,375,811.95 is: 1,898,618.63
Step by Step Solution
- Step 1: Write the proportion equation
2,521,731.60 : 3,479,986.19 = 1,375,811.95 : x - Step 2: Convert to fraction form
2,521,731.60/3,479,986.19 = 1,375,811.95/x - Step 3: Cross multiply
2,521,731.60x = 3,479,986.19 × 1,375,811.95 - Step 4: Simplify right side
2,521,731.60x = 4,787,806,586,036.97 - Step 5: Solve for x
x = 4,787,806,586,036.97/2,521,731.60 - Step 6: Final answer
x = 1,898,618.63
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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.