Finding the Fourth Proportional to 2,121,286.92, 2,927,442.35 and 1,203,554.75
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Solution
The fourth proportional to 2,121,286.92, 2,927,442.35 and 1,203,554.75 is: 1,660,943.22
Step by Step Solution
- Step 1: Write the proportion equation
2,121,286.92 : 2,927,442.35 = 1,203,554.75 : x - Step 2: Convert to fraction form
2,121,286.92/2,927,442.35 = 1,203,554.75/x - Step 3: Cross multiply
2,121,286.92x = 2,927,442.35 × 1,203,554.75 - Step 4: Simplify right side
2,121,286.92x = 3,523,337,125,038.68 - Step 5: Solve for x
x = 3,523,337,125,038.68/2,121,286.92 - Step 6: Final answer
x = 1,660,943.22
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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.