Finding the Fourth Proportional to 3,240,430.87, 4,471,780.58 and 1,790,126.23
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Solution
The fourth proportional to 3,240,430.87, 4,471,780.58 and 1,790,126.23 is: 2,470,366.45
Step by Step Solution
- Step 1: Write the proportion equation
3,240,430.87 : 4,471,780.58 = 1,790,126.23 : x - Step 2: Convert to fraction form
3,240,430.87/4,471,780.58 = 1,790,126.23/x - Step 3: Cross multiply
3,240,430.87x = 4,471,780.58 × 1,790,126.23 - Step 4: Simplify right side
3,240,430.87x = 8,005,051,702,111.98 - Step 5: Solve for x
x = 8,005,051,702,111.98/3,240,430.87 - Step 6: Final answer
x = 2,470,366.45
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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.