Finding the Fourth Proportional to 1,127,476.56, 1,555,905.80 and 618,177.68
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Solution
The fourth proportional to 1,127,476.56, 1,555,905.80 and 618,177.68 is: 853,078.70
Step by Step Solution
- Step 1: Write the proportion equation
1,127,476.56 : 1,555,905.80 = 618,177.68 : x - Step 2: Convert to fraction form
1,127,476.56/1,555,905.80 = 618,177.68/x - Step 3: Cross multiply
1,127,476.56x = 1,555,905.80 × 618,177.68 - Step 4: Simplify right side
1,127,476.56x = 961,826,237,742.54 - Step 5: Solve for x
x = 961,826,237,742.54/1,127,476.56 - Step 6: Final answer
x = 853,078.70
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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.