Finding the Fourth Proportional to 3,425,465.40, 5,138,198.10 and 1,029,679.80
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Solution
The fourth proportional to 3,425,465.40, 5,138,198.10 and 1,029,679.80 is: 1,544,519.70
Step by Step Solution
- Step 1: Write the proportion equation
3,425,465.40 : 5,138,198.10 = 1,029,679.80 : x - Step 2: Convert to fraction form
3,425,465.40/5,138,198.10 = 1,029,679.80/x - Step 3: Cross multiply
3,425,465.40x = 5,138,198.10 × 1,029,679.80 - Step 4: Simplify right side
3,425,465.40x = 5,290,698,791,968.38 - Step 5: Solve for x
x = 5,290,698,791,968.38/3,425,465.40 - Step 6: Final answer
x = 1,544,519.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.