Finding the Fourth Proportional to 475,707.21, 656,820.36 and 306,236.58
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Solution
The fourth proportional to 475,707.21, 656,820.36 and 306,236.58 is: 422,828.19
Step by Step Solution
- Step 1: Write the proportion equation
475,707.21 : 656,820.36 = 306,236.58 : x - Step 2: Convert to fraction form
475,707.21/656,820.36 = 306,236.58/x - Step 3: Cross multiply
475,707.21x = 656,820.36 × 306,236.58 - Step 4: Simplify right side
475,707.21x = 201,142,420,720.77 - Step 5: Solve for x
x = 201,142,420,720.77/475,707.21 - Step 6: Final answer
x = 422,828.19
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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.