Finding the Fourth Proportional to 1,505,559.65, 2,077,674.30 and 817,231.07
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Solution
The fourth proportional to 1,505,559.65, 2,077,674.30 and 817,231.07 is: 1,127,779.95
Step by Step Solution
- Step 1: Write the proportion equation
1,505,559.65 : 2,077,674.30 = 817,231.07 : x - Step 2: Convert to fraction form
1,505,559.65/2,077,674.30 = 817,231.07/x - Step 3: Cross multiply
1,505,559.65x = 2,077,674.30 × 817,231.07 - Step 4: Simplify right side
1,505,559.65x = 1,697,939,980,912.13 - Step 5: Solve for x
x = 1,697,939,980,912.13/1,505,559.65 - Step 6: Final answer
x = 1,127,779.95
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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.