Finding the Fourth Proportional to 720,792.10, 1,081,726.71 and 271,955.62
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Solution
The fourth proportional to 720,792.10, 1,081,726.71 and 271,955.62 is: 408,136.63
Step by Step Solution
- Step 1: Write the proportion equation
720,792.10 : 1,081,726.71 = 271,955.62 : x - Step 2: Convert to fraction form
720,792.10/1,081,726.71 = 271,955.62/x - Step 3: Cross multiply
720,792.10x = 1,081,726.71 × 271,955.62 - Step 4: Simplify right side
720,792.10x = 294,181,658,088.61 - Step 5: Solve for x
x = 294,181,658,088.61/720,792.10 - Step 6: Final answer
x = 408,136.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.