Finding the Fourth Proportional to 628,902.92, 867,901.58 and 342,438.68
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Solution
The fourth proportional to 628,902.92, 867,901.58 and 342,438.68 is: 472,573.85
Step by Step Solution
- Step 1: Write the proportion equation
628,902.92 : 867,901.58 = 342,438.68 : x - Step 2: Convert to fraction form
628,902.92/867,901.58 = 342,438.68/x - Step 3: Cross multiply
628,902.92x = 867,901.58 × 342,438.68 - Step 4: Simplify right side
628,902.92x = 297,203,071,425.11 - Step 5: Solve for x
x = 297,203,071,425.11/628,902.92 - Step 6: Final answer
x = 472,573.85
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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.