Finding the Fourth Proportional to 1,283,419.05, 1,771,118.80 and 702,679.81
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Solution
The fourth proportional to 1,283,419.05, 1,771,118.80 and 702,679.81 is: 969,698.42
Step by Step Solution
- Step 1: Write the proportion equation
1,283,419.05 : 1,771,118.80 = 702,679.81 : x - Step 2: Convert to fraction form
1,283,419.05/1,771,118.80 = 702,679.81/x - Step 3: Cross multiply
1,283,419.05x = 1,771,118.80 × 702,679.81 - Step 4: Simplify right side
1,283,419.05x = 1,244,529,419,007.78 - Step 5: Solve for x
x = 1,244,529,419,007.78/1,283,419.05 - Step 6: Final answer
x = 969,698.42
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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.