Finding the Fourth Proportional to 291,632.70, 409,391.70 and 291,632.70
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Solution
The fourth proportional to 291,632.70, 409,391.70 and 291,632.70 is: 409,391.70
Step by Step Solution
- Step 1: Write the proportion equation
291,632.70 : 409,391.70 = 291,632.70 : x - Step 2: Convert to fraction form
291,632.70/409,391.70 = 291,632.70/x - Step 3: Cross multiply
291,632.70x = 409,391.70 × 291,632.70 - Step 4: Simplify right side
291,632.70x = 119,392,006,828.59 - Step 5: Solve for x
x = 119,392,006,828.59/291,632.70 - Step 6: Final answer
x = 409,391.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.