Finding the Fourth Proportional to 1,405,293.06, 2,107,624.38 and 646,405.74
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Solution
The fourth proportional to 1,405,293.06, 2,107,624.38 and 646,405.74 is: 969,463.62
Step by Step Solution
- Step 1: Write the proportion equation
1,405,293.06 : 2,107,624.38 = 646,405.74 : x - Step 2: Convert to fraction form
1,405,293.06/2,107,624.38 = 646,405.74/x - Step 3: Cross multiply
1,405,293.06x = 2,107,624.38 × 646,405.74 - Step 4: Simplify right side
1,405,293.06x = 1,362,380,496,995.94 - Step 5: Solve for x
x = 1,362,380,496,995.94/1,405,293.06 - Step 6: Final answer
x = 969,463.62
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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.