Finding the Fourth Proportional to 1,947,778.04, 2,689,657.20 and 1,213,984.66
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Solution
The fourth proportional to 1,947,778.04, 2,689,657.20 and 1,213,984.66 is: 1,676,373.03
Step by Step Solution
- Step 1: Write the proportion equation
1,947,778.04 : 2,689,657.20 = 1,213,984.66 : x - Step 2: Convert to fraction form
1,947,778.04/2,689,657.20 = 1,213,984.66/x - Step 3: Cross multiply
1,947,778.04x = 2,689,657.20 × 1,213,984.66 - Step 4: Simplify right side
1,947,778.04x = 3,265,202,574,734.41 - Step 5: Solve for x
x = 3,265,202,574,734.41/1,947,778.04 - Step 6: Final answer
x = 1,676,373.03
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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.