Finding the Fourth Proportional to 1,820,975.13, 2,512,936.91 and 1,005,171.68
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Solution
The fourth proportional to 1,820,975.13, 2,512,936.91 and 1,005,171.68 is: 1,387,132.08
Step by Step Solution
- Step 1: Write the proportion equation
1,820,975.13 : 2,512,936.91 = 1,005,171.68 : x - Step 2: Convert to fraction form
1,820,975.13/2,512,936.91 = 1,005,171.68/x - Step 3: Cross multiply
1,820,975.13x = 2,512,936.91 × 1,005,171.68 - Step 4: Simplify right side
1,820,975.13x = 2,525,933,015,558.71 - Step 5: Solve for x
x = 2,525,933,015,558.71/1,820,975.13 - Step 6: Final answer
x = 1,387,132.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.