Finding the Fourth Proportional to 876,076.30, 1,209,243.86 and 513,578.62
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Solution
The fourth proportional to 876,076.30, 1,209,243.86 and 513,578.62 is: 708,890.07
Step by Step Solution
- Step 1: Write the proportion equation
876,076.30 : 1,209,243.86 = 513,578.62 : x - Step 2: Convert to fraction form
876,076.30/1,209,243.86 = 513,578.62/x - Step 3: Cross multiply
876,076.30x = 1,209,243.86 × 513,578.62 - Step 4: Simplify right side
876,076.30x = 621,041,792,862.27 - Step 5: Solve for x
x = 621,041,792,862.27/876,076.30 - Step 6: Final answer
x = 708,890.07
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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.