Finding the Fourth Proportional to 487,638.51, 673,076.43 and 283,728.84
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Solution
The fourth proportional to 487,638.51, 673,076.43 and 283,728.84 is: 391,624.51
Step by Step Solution
- Step 1: Write the proportion equation
487,638.51 : 673,076.43 = 283,728.84 : x - Step 2: Convert to fraction form
487,638.51/673,076.43 = 283,728.84/x - Step 3: Cross multiply
487,638.51x = 673,076.43 × 283,728.84 - Step 4: Simplify right side
487,638.51x = 190,971,194,715.24 - Step 5: Solve for x
x = 190,971,194,715.24/487,638.51 - Step 6: Final answer
x = 391,624.51
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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.