Finding the Fourth Proportional to 622,529.21, 859,122.30 and 380,735.91
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Solution
The fourth proportional to 622,529.21, 859,122.30 and 380,735.91 is: 525,435.12
Step by Step Solution
- Step 1: Write the proportion equation
622,529.21 : 859,122.30 = 380,735.91 : x - Step 2: Convert to fraction form
622,529.21/859,122.30 = 380,735.91/x - Step 3: Cross multiply
622,529.21x = 859,122.30 × 380,735.91 - Step 4: Simplify right side
622,529.21x = 327,098,710,691.79 - Step 5: Solve for x
x = 327,098,710,691.79/622,529.21 - Step 6: Final answer
x = 525,435.12
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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.