Finding the Fourth Proportional to 489,201.40, 733,802.10 and 445,655.80
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Solution
The fourth proportional to 489,201.40, 733,802.10 and 445,655.80 is: 668,483.70
Step by Step Solution
- Step 1: Write the proportion equation
489,201.40 : 733,802.10 = 445,655.80 : x - Step 2: Convert to fraction form
489,201.40/733,802.10 = 445,655.80/x - Step 3: Cross multiply
489,201.40x = 733,802.10 × 445,655.80 - Step 4: Simplify right side
489,201.40x = 327,023,161,917.18 - Step 5: Solve for x
x = 327,023,161,917.18/489,201.40 - Step 6: Final answer
x = 668,483.70
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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.