Finding the Fourth Proportional to 1,127,486.16, 1,555,919.28 and 618,187.68
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Solution
The fourth proportional to 1,127,486.16, 1,555,919.28 and 618,187.68 is: 853,092.63
Step by Step Solution
- Step 1: Write the proportion equation
1,127,486.16 : 1,555,919.28 = 618,187.68 : x - Step 2: Convert to fraction form
1,127,486.16/1,555,919.28 = 618,187.68/x - Step 3: Cross multiply
1,127,486.16x = 1,555,919.28 × 618,187.68 - Step 4: Simplify right side
1,127,486.16x = 961,850,129,970.47 - Step 5: Solve for x
x = 961,850,129,970.47/1,127,486.16 - Step 6: Final answer
x = 853,092.63
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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.