Finding the Fourth Proportional to 1,270,147.18, 1,752,804.77 and 689,370.28
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Solution
The fourth proportional to 1,270,147.18, 1,752,804.77 and 689,370.28 is: 951,331.89
Step by Step Solution
- Step 1: Write the proportion equation
1,270,147.18 : 1,752,804.77 = 689,370.28 : x - Step 2: Convert to fraction form
1,270,147.18/1,752,804.77 = 689,370.28/x - Step 3: Cross multiply
1,270,147.18x = 1,752,804.77 × 689,370.28 - Step 4: Simplify right side
1,270,147.18x = 1,208,331,515,080.24 - Step 5: Solve for x
x = 1,208,331,515,080.24/1,270,147.18 - Step 6: Final answer
x = 951,331.89
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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.