Finding the Fourth Proportional to 1,428,701.74, 1,971,729.36 and 784,231.08
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Solution
The fourth proportional to 1,428,701.74, 1,971,729.36 and 784,231.08 is: 1,082,305.29
Step by Step Solution
- Step 1: Write the proportion equation
1,428,701.74 : 1,971,729.36 = 784,231.08 : x - Step 2: Convert to fraction form
1,428,701.74/1,971,729.36 = 784,231.08/x - Step 3: Cross multiply
1,428,701.74x = 1,971,729.36 × 784,231.08 - Step 4: Simplify right side
1,428,701.74x = 1,546,291,445,460.51 - Step 5: Solve for x
x = 1,546,291,445,460.51/1,428,701.74 - Step 6: Final answer
x = 1,082,305.29
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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.