Finding the Fourth Proportional to 457,849.92, 631,619.70 and 296,757.12
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Solution
The fourth proportional to 457,849.92, 631,619.70 and 296,757.12 is: 409,386.65
Step by Step Solution
- Step 1: Write the proportion equation
457,849.92 : 631,619.70 = 296,757.12 : x - Step 2: Convert to fraction form
457,849.92/631,619.70 = 296,757.12/x - Step 3: Cross multiply
457,849.92x = 631,619.70 × 296,757.12 - Step 4: Simplify right side
457,849.92x = 187,437,643,107.26 - Step 5: Solve for x
x = 187,437,643,107.26/457,849.92 - Step 6: Final answer
x = 409,386.65
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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.