Finding the Fourth Proportional to 3,121,203.18, 4,681,804.80 and 877,341.18
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Solution
The fourth proportional to 3,121,203.18, 4,681,804.80 and 877,341.18 is: 1,316,011.78
Step by Step Solution
- Step 1: Write the proportion equation
3,121,203.18 : 4,681,804.80 = 877,341.18 : x - Step 2: Convert to fraction form
3,121,203.18/4,681,804.80 = 877,341.18/x - Step 3: Cross multiply
3,121,203.18x = 4,681,804.80 × 877,341.18 - Step 4: Simplify right side
3,121,203.18x = 4,107,540,147,761.66 - Step 5: Solve for x
x = 4,107,540,147,761.66/3,121,203.18 - Step 6: Final answer
x = 1,316,011.78
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1.5x scale
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.