Finding the Fourth Proportional to 1,283,440.14, 1,771,161.39 and 710,489.88
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Solution
The fourth proportional to 1,283,440.14, 1,771,161.39 and 710,489.88 is: 980,483.78
Step by Step Solution
- Step 1: Write the proportion equation
1,283,440.14 : 1,771,161.39 = 710,489.88 : x - Step 2: Convert to fraction form
1,283,440.14/1,771,161.39 = 710,489.88/x - Step 3: Cross multiply
1,283,440.14x = 1,771,161.39 × 710,489.88 - Step 4: Simplify right side
1,283,440.14x = 1,258,392,243,441.73 - Step 5: Solve for x
x = 1,258,392,243,441.73/1,283,440.14 - Step 6: Final answer
x = 980,483.78
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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.