Finding the Fourth Proportional to 489,232.21, 675,214.26 and 298,356.31
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Solution
The fourth proportional to 489,232.21, 675,214.26 and 298,356.31 is: 411,776.72
Step by Step Solution
- Step 1: Write the proportion equation
489,232.21 : 675,214.26 = 298,356.31 : x - Step 2: Convert to fraction form
489,232.21/675,214.26 = 298,356.31/x - Step 3: Cross multiply
489,232.21x = 675,214.26 × 298,356.31 - Step 4: Simplify right side
489,232.21x = 201,454,435,072.98 - Step 5: Solve for x
x = 201,454,435,072.98/489,232.21 - Step 6: Final answer
x = 411,776.72
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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.