Finding the Fourth Proportional to 1,117,738.53, 1,676,184.84 and 478,015.65
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Solution
The fourth proportional to 1,117,738.53, 1,676,184.84 and 478,015.65 is: 716,842.59
Step by Step Solution
- Step 1: Write the proportion equation
1,117,738.53 : 1,676,184.84 = 478,015.65 : x - Step 2: Convert to fraction form
1,117,738.53/1,676,184.84 = 478,015.65/x - Step 3: Cross multiply
1,117,738.53x = 1,676,184.84 × 478,015.65 - Step 4: Simplify right side
1,117,738.53x = 801,242,585,812.75 - Step 5: Solve for x
x = 801,242,585,812.75/1,117,738.53 - Step 6: Final answer
x = 716,842.59
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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.