Finding the Fourth Proportional to 465,005.70, 641,685.99 and 258,287.49
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Solution
The fourth proportional to 465,005.70, 641,685.99 and 258,287.49 is: 356,424.59
Step by Step Solution
- Step 1: Write the proportion equation
465,005.70 : 641,685.99 = 258,287.49 : x - Step 2: Convert to fraction form
465,005.70/641,685.99 = 258,287.49/x - Step 3: Cross multiply
465,005.70x = 641,685.99 × 258,287.49 - Step 4: Simplify right side
465,005.70x = 165,739,463,725.27 - Step 5: Solve for x
x = 165,739,463,725.27/465,005.70 - Step 6: Final answer
x = 356,424.59
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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.