Finding the Fourth Proportional to 758,128.48, 1,046,185.68 and 413,936.80
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Solution
The fourth proportional to 758,128.48, 1,046,185.68 and 413,936.80 is: 571,215.52
Step by Step Solution
- Step 1: Write the proportion equation
758,128.48 : 1,046,185.68 = 413,936.80 : x - Step 2: Convert to fraction form
758,128.48/1,046,185.68 = 413,936.80/x - Step 3: Cross multiply
758,128.48x = 1,046,185.68 × 413,936.80 - Step 4: Simplify right side
758,128.48x = 433,054,752,585.02 - Step 5: Solve for x
x = 433,054,752,585.02/758,128.48 - Step 6: Final answer
x = 571,215.52
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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.