Finding the Fourth Proportional to 753,918.71, 1,131,018.19 and 248,515.09
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Solution
The fourth proportional to 753,918.71, 1,131,018.19 and 248,515.09 is: 372,818.82
Step by Step Solution
- Step 1: Write the proportion equation
753,918.71 : 1,131,018.19 = 248,515.09 : x - Step 2: Convert to fraction form
753,918.71/1,131,018.19 = 248,515.09/x - Step 3: Cross multiply
753,918.71x = 1,131,018.19 × 248,515.09 - Step 4: Simplify right side
753,918.71x = 281,075,083,830.65 - Step 5: Solve for x
x = 281,075,083,830.65/753,918.71 - Step 6: Final answer
x = 372,818.82
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1.5x scale
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.