Finding the Fourth Proportional to 2,104,995.20, 2,905,640.30 and 1,245,553.61
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Solution
The fourth proportional to 2,104,995.20, 2,905,640.30 and 1,245,553.61 is: 1,719,305.95
Step by Step Solution
- Step 1: Write the proportion equation
2,104,995.20 : 2,905,640.30 = 1,245,553.61 : x - Step 2: Convert to fraction form
2,104,995.20/2,905,640.30 = 1,245,553.61/x - Step 3: Cross multiply
2,104,995.20x = 2,905,640.30 × 1,245,553.61 - Step 4: Simplify right side
2,104,995.20x = 3,619,130,753,612.17 - Step 5: Solve for x
x = 3,619,130,753,612.17/2,104,995.20 - Step 6: Final answer
x = 1,719,305.95
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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.