Finding the Fourth Proportional to 782,943.41, 1,080,537.74 and 438,837.80
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Solution
The fourth proportional to 782,943.41, 1,080,537.74 and 438,837.80 is: 605,638.66
Step by Step Solution
- Step 1: Write the proportion equation
782,943.41 : 1,080,537.74 = 438,837.80 : x - Step 2: Convert to fraction form
782,943.41/1,080,537.74 = 438,837.80/x - Step 3: Cross multiply
782,943.41x = 1,080,537.74 × 438,837.80 - Step 4: Simplify right side
782,943.41x = 474,180,800,332.98 - Step 5: Solve for x
x = 474,180,800,332.98/782,943.41 - Step 6: Final answer
x = 605,638.66
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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.