Finding the Fourth Proportional to 1,912,862.97, 2,639,848.64 and 1,085,994.50
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Solution
The fourth proportional to 1,912,862.97, 2,639,848.64 and 1,085,994.50 is: 1,498,727.89
Step by Step Solution
- Step 1: Write the proportion equation
1,912,862.97 : 2,639,848.64 = 1,085,994.50 : x - Step 2: Convert to fraction form
1,912,862.97/2,639,848.64 = 1,085,994.50/x - Step 3: Cross multiply
1,912,862.97x = 2,639,848.64 × 1,085,994.50 - Step 4: Simplify right side
1,912,862.97x = 2,866,861,085,243.26 - Step 5: Solve for x
x = 2,866,861,085,243.26/1,912,862.97 - Step 6: Final answer
x = 1,498,727.89
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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.