Finding the Fourth Proportional to 1,217,107.26, 1,679,478.72 and 673,156.62
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Solution
The fourth proportional to 1,217,107.26, 1,679,478.72 and 673,156.62 is: 928,884.62
Step by Step Solution
- Step 1: Write the proportion equation
1,217,107.26 : 1,679,478.72 = 673,156.62 : x - Step 2: Convert to fraction form
1,217,107.26/1,679,478.72 = 673,156.62/x - Step 3: Cross multiply
1,217,107.26x = 1,679,478.72 × 673,156.62 - Step 4: Simplify right side
1,217,107.26x = 1,130,552,218,517.13 - Step 5: Solve for x
x = 1,130,552,218,517.13/1,217,107.26 - Step 6: Final answer
x = 928,884.62
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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.