Finding the Fourth Proportional to 2,257,649.10, 3,115,557.86 and 1,290,799.63
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Solution
The fourth proportional to 2,257,649.10, 3,115,557.86 and 1,290,799.63 is: 1,781,304.69
Step by Step Solution
- Step 1: Write the proportion equation
2,257,649.10 : 3,115,557.86 = 1,290,799.63 : x - Step 2: Convert to fraction form
2,257,649.10/3,115,557.86 = 1,290,799.63/x - Step 3: Cross multiply
2,257,649.10x = 3,115,557.86 × 1,290,799.63 - Step 4: Simplify right side
2,257,649.10x = 4,021,560,926,477.59 - Step 5: Solve for x
x = 4,021,560,926,477.59/2,257,649.10 - Step 6: Final answer
x = 1,781,304.69
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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.