Finding the Fourth Proportional to 1,486,720.21, 2,051,509.35 and 824,415.42
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Solution
The fourth proportional to 1,486,720.21, 2,051,509.35 and 824,415.42 is: 1,137,602.04
Step by Step Solution
- Step 1: Write the proportion equation
1,486,720.21 : 2,051,509.35 = 824,415.42 : x - Step 2: Convert to fraction form
1,486,720.21/2,051,509.35 = 824,415.42/x - Step 3: Cross multiply
1,486,720.21x = 2,051,509.35 × 824,415.42 - Step 4: Simplify right side
1,486,720.21x = 1,691,295,942,414.18 - Step 5: Solve for x
x = 1,691,295,942,414.18/1,486,720.21 - Step 6: Final answer
x = 1,137,602.04
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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.