Finding the Fourth Proportional to 2,139,208.60, 3,207,257.70 and 876,386.20
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Solution
The fourth proportional to 2,139,208.60, 3,207,257.70 and 876,386.20 is: 1,313,942.17
Step by Step Solution
- Step 1: Write the proportion equation
2,139,208.60 : 3,207,257.70 = 876,386.20 : x - Step 2: Convert to fraction form
2,139,208.60/3,207,257.70 = 876,386.20/x - Step 3: Cross multiply
2,139,208.60x = 3,207,257.70 × 876,386.20 - Step 4: Simplify right side
2,139,208.60x = 2,810,796,388,123.74 - Step 5: Solve for x
x = 2,810,796,388,123.74/2,139,208.60 - Step 6: Final answer
x = 1,313,942.17
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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.