Finding the Fourth Proportional to 489,293.73, 675,226.58 and 285,484.77
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Solution
The fourth proportional to 489,293.73, 675,226.58 and 285,484.77 is: 393,969.70
Step by Step Solution
- Step 1: Write the proportion equation
489,293.73 : 675,226.58 = 285,484.77 : x - Step 2: Convert to fraction form
489,293.73/675,226.58 = 285,484.77/x - Step 3: Cross multiply
489,293.73x = 675,226.58 × 285,484.77 - Step 4: Simplify right side
489,293.73x = 192,766,903,461.76 - Step 5: Solve for x
x = 192,766,903,461.76/489,293.73 - Step 6: Final answer
x = 393,969.70
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1.5x scale
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.