Finding the Fourth Proportional to 457,489.02, 631,183.62 and 276,132.05
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Solution
The fourth proportional to 457,489.02, 631,183.62 and 276,132.05 is: 380,970.95
Step by Step Solution
- Step 1: Write the proportion equation
457,489.02 : 631,183.62 = 276,132.05 : x - Step 2: Convert to fraction form
457,489.02/631,183.62 = 276,132.05/x - Step 3: Cross multiply
457,489.02x = 631,183.62 × 276,132.05 - Step 4: Simplify right side
457,489.02x = 174,290,026,917.02 - Step 5: Solve for x
x = 174,290,026,917.02/457,489.02 - Step 6: Final answer
x = 380,970.95
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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.