Finding the Fourth Proportional to 1,422,765.78, 1,963,418.04 and 802,578.75
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Solution
The fourth proportional to 1,422,765.78, 1,963,418.04 and 802,578.75 is: 1,107,559.39
Step by Step Solution
- Step 1: Write the proportion equation
1,422,765.78 : 1,963,418.04 = 802,578.75 : x - Step 2: Convert to fraction form
1,422,765.78/1,963,418.04 = 802,578.75/x - Step 3: Cross multiply
1,422,765.78x = 1,963,418.04 × 802,578.75 - Step 4: Simplify right side
1,422,765.78x = 1,575,797,596,270.65 - Step 5: Solve for x
x = 1,575,797,596,270.65/1,422,765.78 - Step 6: Final answer
x = 1,107,559.39
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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.