Finding the Fourth Proportional to 1,372,321.65, 1,893,864.09 and 760,472.98
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Solution
The fourth proportional to 1,372,321.65, 1,893,864.09 and 760,472.98 is: 1,049,486.08
Step by Step Solution
- Step 1: Write the proportion equation
1,372,321.65 : 1,893,864.09 = 760,472.98 : x - Step 2: Convert to fraction form
1,372,321.65/1,893,864.09 = 760,472.98/x - Step 3: Cross multiply
1,372,321.65x = 1,893,864.09 × 760,472.98 - Step 4: Simplify right side
1,372,321.65x = 1,440,232,468,237.29 - Step 5: Solve for x
x = 1,440,232,468,237.29/1,372,321.65 - Step 6: Final answer
x = 1,049,486.08
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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.