Finding the Fourth Proportional to 2,105,127.95, 2,905,078.63 and 1,138,257.99
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Solution
The fourth proportional to 2,105,127.95, 2,905,078.63 and 1,138,257.99 is: 1,570,797.14
Step by Step Solution
- Step 1: Write the proportion equation
2,105,127.95 : 2,905,078.63 = 1,138,257.99 : x - Step 2: Convert to fraction form
2,105,127.95/2,905,078.63 = 1,138,257.99/x - Step 3: Cross multiply
2,105,127.95x = 2,905,078.63 × 1,138,257.99 - Step 4: Simplify right side
2,105,127.95x = 3,306,728,962,175.75 - Step 5: Solve for x
x = 3,306,728,962,175.75/2,105,127.95 - Step 6: Final answer
x = 1,570,797.14
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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.