Finding the Fourth Proportional to 2,157,941.80, 3,232,247.10 and 1,921,551.40
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Solution
The fourth proportional to 2,157,941.80, 3,232,247.10 and 1,921,551.40 is: 2,878,172.59
Step by Step Solution
- Step 1: Write the proportion equation
2,157,941.80 : 3,232,247.10 = 1,921,551.40 : x - Step 2: Convert to fraction form
2,157,941.80/3,232,247.10 = 1,921,551.40/x - Step 3: Cross multiply
2,157,941.80x = 3,232,247.10 × 1,921,551.40 - Step 4: Simplify right side
2,157,941.80x = 6,210,928,940,150.94 - Step 5: Solve for x
x = 6,210,928,940,150.94/2,157,941.80 - Step 6: Final answer
x = 2,878,172.59
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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.