Finding the Fourth Proportional to 494,134.40, 741,201.60 and 486,261.20
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Solution
The fourth proportional to 494,134.40, 741,201.60 and 486,261.20 is: 729,391.80
Step by Step Solution
- Step 1: Write the proportion equation
494,134.40 : 741,201.60 = 486,261.20 : x - Step 2: Convert to fraction form
494,134.40/741,201.60 = 486,261.20/x - Step 3: Cross multiply
494,134.40x = 741,201.60 × 486,261.20 - Step 4: Simplify right side
494,134.40x = 360,417,579,457.92 - Step 5: Solve for x
x = 360,417,579,457.92/494,134.40 - Step 6: Final answer
x = 729,391.80
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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.