Finding the Fourth Proportional to 1,234,171.12, 1,703,313.84 and 690,337.12
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Solution
The fourth proportional to 1,234,171.12, 1,703,313.84 and 690,337.12 is: 952,753.43
Step by Step Solution
- Step 1: Write the proportion equation
1,234,171.12 : 1,703,313.84 = 690,337.12 : x - Step 2: Convert to fraction form
1,234,171.12/1,703,313.84 = 690,337.12/x - Step 3: Cross multiply
1,234,171.12x = 1,703,313.84 × 690,337.12 - Step 4: Simplify right side
1,234,171.12x = 1,175,860,770,761.74 - Step 5: Solve for x
x = 1,175,860,770,761.74/1,234,171.12 - Step 6: Final answer
x = 952,753.43
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1.5x scale
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.