Finding the Fourth Proportional to 1,900,209.78, 2,622,340.51 and 1,073,216.99
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Solution
The fourth proportional to 1,900,209.78, 2,622,340.51 and 1,073,216.99 is: 1,481,068.26
Step by Step Solution
- Step 1: Write the proportion equation
1,900,209.78 : 2,622,340.51 = 1,073,216.99 : x - Step 2: Convert to fraction form
1,900,209.78/2,622,340.51 = 1,073,216.99/x - Step 3: Cross multiply
1,900,209.78x = 2,622,340.51 × 1,073,216.99 - Step 4: Simplify right side
1,900,209.78x = 2,814,340,392,770.07 - Step 5: Solve for x
x = 2,814,340,392,770.07/1,900,209.78 - Step 6: Final answer
x = 1,481,068.26
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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.