Finding the Fourth Proportional to 2,990,971.80, 4,486,457.70 and 996,427.80
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Solution
The fourth proportional to 2,990,971.80, 4,486,457.70 and 996,427.80 is: 1,494,641.70
Step by Step Solution
- Step 1: Write the proportion equation
2,990,971.80 : 4,486,457.70 = 996,427.80 : x - Step 2: Convert to fraction form
2,990,971.80/4,486,457.70 = 996,427.80/x - Step 3: Cross multiply
2,990,971.80x = 4,486,457.70 × 996,427.80 - Step 4: Simplify right side
2,990,971.80x = 4,470,431,175,804.06 - Step 5: Solve for x
x = 4,470,431,175,804.06/2,990,971.80 - Step 6: Final answer
x = 1,494,641.70
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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.