Finding the Fourth Proportional to 417,383.44, 624,288.40 and 387,129.92
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Solution
The fourth proportional to 417,383.44, 624,288.40 and 387,129.92 is: 579,037.63
Step by Step Solution
- Step 1: Write the proportion equation
417,383.44 : 624,288.40 = 387,129.92 : x - Step 2: Convert to fraction form
417,383.44/624,288.40 = 387,129.92/x - Step 3: Cross multiply
417,383.44x = 624,288.40 × 387,129.92 - Step 4: Simplify right side
417,383.44x = 241,680,718,348.93 - Step 5: Solve for x
x = 241,680,718,348.93/417,383.44 - Step 6: Final answer
x = 579,037.63
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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.