Finding the Fourth Proportional to 3,620,128.66, 4,995,486.21 and 2,092,334.74
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Solution
The fourth proportional to 3,620,128.66, 4,995,486.21 and 2,092,334.74 is: 2,887,253.55
Step by Step Solution
- Step 1: Write the proportion equation
3,620,128.66 : 4,995,486.21 = 2,092,334.74 : x - Step 2: Convert to fraction form
3,620,128.66/4,995,486.21 = 2,092,334.74/x - Step 3: Cross multiply
3,620,128.66x = 4,995,486.21 × 2,092,334.74 - Step 4: Simplify right side
3,620,128.66x = 10,452,229,340,373.94 - Step 5: Solve for x
x = 10,452,229,340,373.94/3,620,128.66 - Step 6: Final answer
x = 2,887,253.55
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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.