Finding the Fourth Proportional to 2,142,849.12, 3,214,076.84 and 722,917.50
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Solution
The fourth proportional to 2,142,849.12, 3,214,076.84 and 722,917.50 is: 1,084,309.84
Step by Step Solution
- Step 1: Write the proportion equation
2,142,849.12 : 3,214,076.84 = 722,917.50 : x - Step 2: Convert to fraction form
2,142,849.12/3,214,076.84 = 722,917.50/x - Step 3: Cross multiply
2,142,849.12x = 3,214,076.84 × 722,917.50 - Step 4: Simplify right side
2,142,849.12x = 2,323,512,390,366.11 - Step 5: Solve for x
x = 2,323,512,390,366.11/2,142,849.12 - Step 6: Final answer
x = 1,084,309.84
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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.