Finding the Fourth Proportional to 1,224,109.26, 1,689,163.20 and 680,210.58
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Solution
The fourth proportional to 1,224,109.26, 1,689,163.20 and 680,210.58 is: 938,630.82
Step by Step Solution
- Step 1: Write the proportion equation
1,224,109.26 : 1,689,163.20 = 680,210.58 : x - Step 2: Convert to fraction form
1,224,109.26/1,689,163.20 = 680,210.58/x - Step 3: Cross multiply
1,224,109.26x = 1,689,163.20 × 680,210.58 - Step 4: Simplify right side
1,224,109.26x = 1,148,986,679,986.66 - Step 5: Solve for x
x = 1,148,986,679,986.66/1,224,109.26 - Step 6: Final answer
x = 938,630.82
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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.