Finding the Fourth Proportional to 2,159,439.24, 2,980,026.42 and 1,205,583.24
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Solution
The fourth proportional to 2,159,439.24, 2,980,026.42 and 1,205,583.24 is: 1,663,705.02
Step by Step Solution
- Step 1: Write the proportion equation
2,159,439.24 : 2,980,026.42 = 1,205,583.24 : x - Step 2: Convert to fraction form
2,159,439.24/2,980,026.42 = 1,205,583.24/x - Step 3: Cross multiply
2,159,439.24x = 2,980,026.42 × 1,205,583.24 - Step 4: Simplify right side
2,159,439.24x = 3,592,669,906,709.20 - Step 5: Solve for x
x = 3,592,669,906,709.20/2,159,439.24 - Step 6: Final answer
x = 1,663,705.02
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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.