Finding the Fourth Proportional to 1,677,619.65, 2,315,141.49 and 913,672.62
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Solution
The fourth proportional to 1,677,619.65, 2,315,141.49 and 913,672.62 is: 1,260,882.58
Step by Step Solution
- Step 1: Write the proportion equation
1,677,619.65 : 2,315,141.49 = 913,672.62 : x - Step 2: Convert to fraction form
1,677,619.65/2,315,141.49 = 913,672.62/x - Step 3: Cross multiply
1,677,619.65x = 2,315,141.49 × 913,672.62 - Step 4: Simplify right side
1,677,619.65x = 2,115,281,390,839.00 - Step 5: Solve for x
x = 2,115,281,390,839.00/1,677,619.65 - Step 6: Final answer
x = 1,260,882.58
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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.