Finding the Fourth Proportional to 424,388.10, 636,186.63 and 291,331.02
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Solution
The fourth proportional to 424,388.10, 636,186.63 and 291,331.02 is: 436,725.02
Step by Step Solution
- Step 1: Write the proportion equation
424,388.10 : 636,186.63 = 291,331.02 : x - Step 2: Convert to fraction form
424,388.10/636,186.63 = 291,331.02/x - Step 3: Cross multiply
424,388.10x = 636,186.63 × 291,331.02 - Step 4: Simplify right side
424,388.10x = 185,340,899,828.26 - Step 5: Solve for x
x = 185,340,899,828.26/424,388.10 - Step 6: Final answer
x = 436,725.02
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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.