Finding the Fourth Proportional to 1,378,218.96, 1,901,789.94 and 826,905.36
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Solution
The fourth proportional to 1,378,218.96, 1,901,789.94 and 826,905.36 is: 1,141,038.06
Step by Step Solution
- Step 1: Write the proportion equation
1,378,218.96 : 1,901,789.94 = 826,905.36 : x - Step 2: Convert to fraction form
1,378,218.96/1,901,789.94 = 826,905.36/x - Step 3: Cross multiply
1,378,218.96x = 1,901,789.94 × 826,905.36 - Step 4: Simplify right side
1,378,218.96x = 1,572,600,294,980.08 - Step 5: Solve for x
x = 1,572,600,294,980.08/1,378,218.96 - Step 6: Final answer
x = 1,141,038.06
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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.