Finding the Fourth Proportional to 489,224.25, 675,130.68 and 285,415.29
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Solution
The fourth proportional to 489,224.25, 675,130.68 and 285,415.29 is: 393,873.81
Step by Step Solution
- Step 1: Write the proportion equation
489,224.25 : 675,130.68 = 285,415.29 : x - Step 2: Convert to fraction form
489,224.25/675,130.68 = 285,415.29/x - Step 3: Cross multiply
489,224.25x = 675,130.68 × 285,415.29 - Step 4: Simplify right side
489,224.25x = 192,692,618,820.10 - Step 5: Solve for x
x = 192,692,618,820.10/489,224.25 - Step 6: Final answer
x = 393,873.81
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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.