Finding the Fourth Proportional to 2,559,965.49, 3,532,672.11 and 1,398,393.09
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Solution
The fourth proportional to 2,559,965.49, 3,532,672.11 and 1,398,393.09 is: 1,929,738.62
Step by Step Solution
- Step 1: Write the proportion equation
2,559,965.49 : 3,532,672.11 = 1,398,393.09 : x - Step 2: Convert to fraction form
2,559,965.49/3,532,672.11 = 1,398,393.09/x - Step 3: Cross multiply
2,559,965.49x = 3,532,672.11 × 1,398,393.09 - Step 4: Simplify right side
2,559,965.49x = 4,940,064,267,859.72 - Step 5: Solve for x
x = 4,940,064,267,859.72/2,559,965.49 - Step 6: Final answer
x = 1,929,738.62
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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.