Finding the Fourth Proportional to 890,379,144.97, 1,335,568,759.00 and 609,983,566.06
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Solution
The fourth proportional to 890,379,144.97, 1,335,568,759.00 and 609,983,566.06 is: 914,975,377.55
Step by Step Solution
- Step 1: Write the proportion equation
890,379,144.97 : 1,335,568,759.00 = 609,983,566.06 : x - Step 2: Convert to fraction form
890,379,144.97/1,335,568,759.00 = 609,983,566.06/x - Step 3: Cross multiply
890,379,144.97x = 1,335,568,759.00 × 609,983,566.06 - Step 4: Simplify right side
890,379,144.97x = 814,674,994,330,795,776 - Step 5: Solve for x
x = 814,674,994,330,795,776/890,379,144.97 - Step 6: Final answer
x = 914,975,377.55
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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.