Finding the Fourth Proportional to 1,677,983.18, 2,315,542.09 and 980,328.66
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Solution
The fourth proportional to 1,677,983.18, 2,315,542.09 and 980,328.66 is: 1,352,809.91
Step by Step Solution
- Step 1: Write the proportion equation
1,677,983.18 : 2,315,542.09 = 980,328.66 : x - Step 2: Convert to fraction form
1,677,983.18/2,315,542.09 = 980,328.66/x - Step 3: Cross multiply
1,677,983.18x = 2,315,542.09 × 980,328.66 - Step 4: Simplify right side
1,677,983.18x = 2,269,992,274,263.30 - Step 5: Solve for x
x = 2,269,992,274,263.30/1,677,983.18 - Step 6: Final answer
x = 1,352,809.91
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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.