Finding the Fourth Proportional to 926,804.80, 1,390,207.20 and 727,739.20
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Solution
The fourth proportional to 926,804.80, 1,390,207.20 and 727,739.20 is: 1,091,608.80
Step by Step Solution
- Step 1: Write the proportion equation
926,804.80 : 1,390,207.20 = 727,739.20 : x - Step 2: Convert to fraction form
926,804.80/1,390,207.20 = 727,739.20/x - Step 3: Cross multiply
926,804.80x = 1,390,207.20 × 727,739.20 - Step 4: Simplify right side
926,804.80x = 1,011,708,275,562.24 - Step 5: Solve for x
x = 1,011,708,275,562.24/926,804.80 - Step 6: Final answer
x = 1,091,608.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.