Finding the Fourth Proportional to 805,005.21, 1,207,725.57 and 272,526.27
Calculator
Solution
The fourth proportional to 805,005.21, 1,207,725.57 and 272,526.27 is: 408,863.12
Step by Step Solution
- Step 1: Write the proportion equation
805,005.21 : 1,207,725.57 = 272,526.27 : x - Step 2: Convert to fraction form
805,005.21/1,207,725.57 = 272,526.27/x - Step 3: Cross multiply
805,005.21x = 1,207,725.57 × 272,526.27 - Step 4: Simplify right side
805,005.21x = 329,136,944,775.72 - Step 5: Solve for x
x = 329,136,944,775.72/805,005.21 - Step 6: Final answer
x = 408,863.12
Related Problems
Find fourth proportional to 402,502.61, 603,862.79 and 136,263.14
Half scale
Find fourth proportional to 1,610,010.42, 2,415,451.14 and 545,052.54
Double scale
Find fourth proportional to 805,006.21, 1,207,727.07 and 272,527.27
Similar ratio
Find fourth proportional to 1,207,507.82, 1,811,588.36 and 408,789.41
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.