Finding the Fourth Proportional to 450,657.68, 679,149.86 and 405,723.94
Calculator
Solution
The fourth proportional to 450,657.68, 679,149.86 and 405,723.94 is: 611,433.84
Step by Step Solution
- Step 1: Write the proportion equation
450,657.68 : 679,149.86 = 405,723.94 : x - Step 2: Convert to fraction form
450,657.68/679,149.86 = 405,723.94/x - Step 3: Cross multiply
450,657.68x = 679,149.86 × 405,723.94 - Step 4: Simplify right side
450,657.68x = 275,547,353,323.15 - Step 5: Solve for x
x = 275,547,353,323.15/450,657.68 - Step 6: Final answer
x = 611,433.84
Related Problems
Find fourth proportional to 225,328.84, 339,574.93 and 202,861.97
Half scale
Find fourth proportional to 901,315.35, 1,358,299.71 and 811,447.88
Double scale
Find fourth proportional to 450,658.68, 679,151.36 and 405,724.94
Similar ratio
Find fourth proportional to 675,986.51, 1,018,724.78 and 608,585.91
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.