Finding the Fourth Proportional to 622,246.12, 858,341.84 and 392,721.84
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Solution
The fourth proportional to 622,246.12, 858,341.84 and 392,721.84 is: 541,730.31
Step by Step Solution
- Step 1: Write the proportion equation
622,246.12 : 858,341.84 = 392,721.84 : x - Step 2: Convert to fraction form
622,246.12/858,341.84 = 392,721.84/x - Step 3: Cross multiply
622,246.12x = 858,341.84 × 392,721.84 - Step 4: Simplify right side
622,246.12x = 337,089,584,790.18 - Step 5: Solve for x
x = 337,089,584,790.18/622,246.12 - Step 6: Final answer
x = 541,730.31
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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.