Finding the Fourth Proportional to 2,138,432.10, 3,207,380.49 and 698,995.07
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Solution
The fourth proportional to 2,138,432.10, 3,207,380.49 and 698,995.07 is: 1,048,405.11
Step by Step Solution
- Step 1: Write the proportion equation
2,138,432.10 : 3,207,380.49 = 698,995.07 : x - Step 2: Convert to fraction form
2,138,432.10/3,207,380.49 = 698,995.07/x - Step 3: Cross multiply
2,138,432.10x = 3,207,380.49 × 698,995.07 - Step 4: Simplify right side
2,138,432.10x = 2,241,943,146,114.96 - Step 5: Solve for x
x = 2,241,943,146,114.96/2,138,432.10 - Step 6: Final answer
x = 1,048,405.11
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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.