Finding the Fourth Proportional to 1,947,862.80, 2,921,794.20 and 1,097,557.20
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Solution
The fourth proportional to 1,947,862.80, 2,921,794.20 and 1,097,557.20 is: 1,646,335.80
Step by Step Solution
- Step 1: Write the proportion equation
1,947,862.80 : 2,921,794.20 = 1,097,557.20 : x - Step 2: Convert to fraction form
1,947,862.80/2,921,794.20 = 1,097,557.20/x - Step 3: Cross multiply
1,947,862.80x = 2,921,794.20 × 1,097,557.20 - Step 4: Simplify right side
1,947,862.80x = 3,206,836,261,128.24 - Step 5: Solve for x
x = 3,206,836,261,128.24/1,947,862.80 - Step 6: Final answer
x = 1,646,335.80
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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.