Finding the Fourth Proportional to 2,119,862.88, 3,177,869.88 and 771,071.92
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Solution
The fourth proportional to 2,119,862.88, 3,177,869.88 and 771,071.92 is: 1,155,907.89
Step by Step Solution
- Step 1: Write the proportion equation
2,119,862.88 : 3,177,869.88 = 771,071.92 : x - Step 2: Convert to fraction form
2,119,862.88/3,177,869.88 = 771,071.92/x - Step 3: Cross multiply
2,119,862.88x = 3,177,869.88 × 771,071.92 - Step 4: Simplify right side
2,119,862.88x = 2,450,366,229,881.77 - Step 5: Solve for x
x = 2,450,366,229,881.77/2,119,862.88 - Step 6: Final answer
x = 1,155,907.89
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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.