Finding the Fourth Proportional to 1,940,803.80, 2,911,205.70 and 1,772,842.20
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Solution
The fourth proportional to 1,940,803.80, 2,911,205.70 and 1,772,842.20 is: 2,659,263.30
Step by Step Solution
- Step 1: Write the proportion equation
1,940,803.80 : 2,911,205.70 = 1,772,842.20 : x - Step 2: Convert to fraction form
1,940,803.80/2,911,205.70 = 1,772,842.20/x - Step 3: Cross multiply
1,940,803.80x = 2,911,205.70 × 1,772,842.20 - Step 4: Simplify right side
1,940,803.80x = 5,161,108,317,840.54 - Step 5: Solve for x
x = 5,161,108,317,840.54/1,940,803.80 - Step 6: Final answer
x = 2,659,263.30
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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.