Finding the Fourth Proportional to 3,127,235.12, 4,315,592.80 and 1,696,451.12
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Solution
The fourth proportional to 3,127,235.12, 4,315,592.80 and 1,696,451.12 is: 2,341,107.07
Step by Step Solution
- Step 1: Write the proportion equation
3,127,235.12 : 4,315,592.80 = 1,696,451.12 : x - Step 2: Convert to fraction form
3,127,235.12/4,315,592.80 = 1,696,451.12/x - Step 3: Cross multiply
3,127,235.12x = 4,315,592.80 × 1,696,451.12 - Step 4: Simplify right side
3,127,235.12x = 7,321,192,239,023.94 - Step 5: Solve for x
x = 7,321,192,239,023.94/3,127,235.12 - Step 6: Final answer
x = 2,341,107.07
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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.