Finding the Fourth Proportional to 3,240,430.12, 4,471,779.52 and 1,790,125.48
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Solution
The fourth proportional to 3,240,430.12, 4,471,779.52 and 1,790,125.48 is: 2,470,365.40
Step by Step Solution
- Step 1: Write the proportion equation
3,240,430.12 : 4,471,779.52 = 1,790,125.48 : x - Step 2: Convert to fraction form
3,240,430.12/4,471,779.52 = 1,790,125.48/x - Step 3: Cross multiply
3,240,430.12x = 4,471,779.52 × 1,790,125.48 - Step 4: Simplify right side
3,240,430.12x = 8,005,046,459,694.17 - Step 5: Solve for x
x = 8,005,046,459,694.17/3,240,430.12 - Step 6: Final answer
x = 2,470,365.40
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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.