Finding the Fourth Proportional to 1,405,252.12, 1,939,246.31 and 760,672.14
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Solution
The fourth proportional to 1,405,252.12, 1,939,246.31 and 760,672.14 is: 1,049,726.68
Step by Step Solution
- Step 1: Write the proportion equation
1,405,252.12 : 1,939,246.31 = 760,672.14 : x - Step 2: Convert to fraction form
1,405,252.12/1,939,246.31 = 760,672.14/x - Step 3: Cross multiply
1,405,252.12x = 1,939,246.31 × 760,672.14 - Step 4: Simplify right side
1,405,252.12x = 1,475,130,640,614.80 - Step 5: Solve for x
x = 1,475,130,640,614.80/1,405,252.12 - Step 6: Final answer
x = 1,049,726.68
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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.