Finding the Fourth Proportional to 486,494.20, 727,991.70 and 329,030.20
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Solution
The fourth proportional to 486,494.20, 727,991.70 and 329,030.20 is: 492,361.99
Step by Step Solution
- Step 1: Write the proportion equation
486,494.20 : 727,991.70 = 329,030.20 : x - Step 2: Convert to fraction form
486,494.20/727,991.70 = 329,030.20/x - Step 3: Cross multiply
486,494.20x = 727,991.70 × 329,030.20 - Step 4: Simplify right side
486,494.20x = 239,531,254,649.34 - Step 5: Solve for x
x = 239,531,254,649.34/486,494.20 - Step 6: Final answer
x = 492,361.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.