Finding the Fourth Proportional to 1,267,926.12, 1,749,917.43 and 784,646.91
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Solution
The fourth proportional to 1,267,926.12, 1,749,917.43 and 784,646.91 is: 1,082,923.75
Step by Step Solution
- Step 1: Write the proportion equation
1,267,926.12 : 1,749,917.43 = 784,646.91 : x - Step 2: Convert to fraction form
1,267,926.12/1,749,917.43 = 784,646.91/x - Step 3: Cross multiply
1,267,926.12x = 1,749,917.43 × 784,646.91 - Step 4: Simplify right side
1,267,926.12x = 1,373,067,304,204.64 - Step 5: Solve for x
x = 1,373,067,304,204.64/1,267,926.12 - Step 6: Final answer
x = 1,082,923.75
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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.