Finding the Fourth Proportional to 906,704.10, 1,251,202.20 and 498,740.09
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Solution
The fourth proportional to 906,704.10, 1,251,202.20 and 498,740.09 is: 688,234.11
Step by Step Solution
- Step 1: Write the proportion equation
906,704.10 : 1,251,202.20 = 498,740.09 : x - Step 2: Convert to fraction form
906,704.10/1,251,202.20 = 498,740.09/x - Step 3: Cross multiply
906,704.10x = 1,251,202.20 × 498,740.09 - Step 4: Simplify right side
906,704.10x = 624,024,691,580.19 - Step 5: Solve for x
x = 624,024,691,580.19/906,704.10 - Step 6: Final answer
x = 688,234.11
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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.