Finding the Fourth Proportional to 3,434,219.12, 5,151,328.68 and 1,190,357.12
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Solution
The fourth proportional to 3,434,219.12, 5,151,328.68 and 1,190,357.12 is: 1,785,535.68
Step by Step Solution
- Step 1: Write the proportion equation
3,434,219.12 : 5,151,328.68 = 1,190,357.12 : x - Step 2: Convert to fraction form
3,434,219.12/5,151,328.68 = 1,190,357.12/x - Step 3: Cross multiply
3,434,219.12x = 5,151,328.68 × 1,190,357.12 - Step 4: Simplify right side
3,434,219.12x = 6,131,920,771,698.20 - Step 5: Solve for x
x = 6,131,920,771,698.20/3,434,219.12 - Step 6: Final answer
x = 1,785,535.68
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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.