Finding the Fourth Proportional to 1,221,344.96, 1,685,372.28 and 677,459.12
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Solution
The fourth proportional to 1,221,344.96, 1,685,372.28 and 677,459.12 is: 934,847.12
Step by Step Solution
- Step 1: Write the proportion equation
1,221,344.96 : 1,685,372.28 = 677,459.12 : x - Step 2: Convert to fraction form
1,221,344.96/1,685,372.28 = 677,459.12/x - Step 3: Cross multiply
1,221,344.96x = 1,685,372.28 × 677,459.12 - Step 4: Simplify right side
1,221,344.96x = 1,141,770,821,681.19 - Step 5: Solve for x
x = 1,141,770,821,681.19/1,221,344.96 - Step 6: Final answer
x = 934,847.12
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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.