Finding the Fourth Proportional to 489,360.24, 675,178.29 and 285,420.06
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Solution
The fourth proportional to 489,360.24, 675,178.29 and 285,420.06 is: 393,798.70
Step by Step Solution
- Step 1: Write the proportion equation
489,360.24 : 675,178.29 = 285,420.06 : x - Step 2: Convert to fraction form
489,360.24/675,178.29 = 285,420.06/x - Step 3: Cross multiply
489,360.24x = 675,178.29 × 285,420.06 - Step 4: Simplify right side
489,360.24x = 192,709,428,042.50 - Step 5: Solve for x
x = 192,709,428,042.50/489,360.24 - Step 6: Final answer
x = 393,798.70
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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.