Finding the Fourth Proportional to 490,619.40, 735,929.10 and 322,657.80
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Solution
The fourth proportional to 490,619.40, 735,929.10 and 322,657.80 is: 483,986.70
Step by Step Solution
- Step 1: Write the proportion equation
490,619.40 : 735,929.10 = 322,657.80 : x - Step 2: Convert to fraction form
490,619.40/735,929.10 = 322,657.80/x - Step 3: Cross multiply
490,619.40x = 735,929.10 × 322,657.80 - Step 4: Simplify right side
490,619.40x = 237,453,264,361.98 - Step 5: Solve for x
x = 237,453,264,361.98/490,619.40 - Step 6: Final answer
x = 483,986.70
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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.