Finding the Fourth Proportional to 457,649.60, 631,572.26 and 276,325.43
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Solution
The fourth proportional to 457,649.60, 631,572.26 and 276,325.43 is: 381,338.63
Step by Step Solution
- Step 1: Write the proportion equation
457,649.60 : 631,572.26 = 276,325.43 : x - Step 2: Convert to fraction form
457,649.60/631,572.26 = 276,325.43/x - Step 3: Cross multiply
457,649.60x = 631,572.26 × 276,325.43 - Step 4: Simplify right side
457,649.60x = 174,519,471,781.08 - Step 5: Solve for x
x = 174,519,471,781.08/457,649.60 - Step 6: Final answer
x = 381,338.63
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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.