Finding the Fourth Proportional to 1,581,561.99, 2,182,565.94 and 856,409.76
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Solution
The fourth proportional to 1,581,561.99, 2,182,565.94 and 856,409.76 is: 1,181,851.10
Step by Step Solution
- Step 1: Write the proportion equation
1,581,561.99 : 2,182,565.94 = 856,409.76 : x - Step 2: Convert to fraction form
1,581,561.99/2,182,565.94 = 856,409.76/x - Step 3: Cross multiply
1,581,561.99x = 2,182,565.94 × 856,409.76 - Step 4: Simplify right side
1,581,561.99x = 1,869,170,772,859.57 - Step 5: Solve for x
x = 1,869,170,772,859.57/1,581,561.99 - Step 6: Final answer
x = 1,181,851.10
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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.