Finding the Fourth Proportional to 782,832.69, 1,080,252.36 and 438,620.04
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Solution
The fourth proportional to 782,832.69, 1,080,252.36 and 438,620.04 is: 605,263.86
Step by Step Solution
- Step 1: Write the proportion equation
782,832.69 : 1,080,252.36 = 438,620.04 : x - Step 2: Convert to fraction form
782,832.69/1,080,252.36 = 438,620.04/x - Step 3: Cross multiply
782,832.69x = 1,080,252.36 × 438,620.04 - Step 4: Simplify right side
782,832.69x = 473,820,333,353.29 - Step 5: Solve for x
x = 473,820,333,353.29/782,832.69 - Step 6: Final answer
x = 605,263.86
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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.