Finding the Fourth Proportional to 1,127,071.28, 1,555,517.94 and 697,490.12
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Solution
The fourth proportional to 1,127,071.28, 1,555,517.94 and 697,490.12 is: 962,635.12
Step by Step Solution
- Step 1: Write the proportion equation
1,127,071.28 : 1,555,517.94 = 697,490.12 : x - Step 2: Convert to fraction form
1,127,071.28/1,555,517.94 = 697,490.12/x - Step 3: Cross multiply
1,127,071.28x = 1,555,517.94 × 697,490.12 - Step 4: Simplify right side
1,127,071.28x = 1,084,958,394,632.75 - Step 5: Solve for x
x = 1,084,958,394,632.75/1,127,071.28 - Step 6: Final answer
x = 962,635.12
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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.