Finding the Fourth Proportional to 489,201.70, 733,802.55 and 209,265.70
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Solution
The fourth proportional to 489,201.70, 733,802.55 and 209,265.70 is: 313,898.55
Step by Step Solution
- Step 1: Write the proportion equation
489,201.70 : 733,802.55 = 209,265.70 : x - Step 2: Convert to fraction form
489,201.70/733,802.55 = 209,265.70/x - Step 3: Cross multiply
489,201.70x = 733,802.55 × 209,265.70 - Step 4: Simplify right side
489,201.70x = 153,559,704,287.54 - Step 5: Solve for x
x = 153,559,704,287.54/489,201.70 - Step 6: Final answer
x = 313,898.55
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1.5x scale
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.