Finding the Fourth Proportional to 802,638.72, 1,202,998.53 and 611,615.21
Calculator
Solution
The fourth proportional to 802,638.72, 1,202,998.53 and 611,615.21 is: 916,691.63
Step by Step Solution
- Step 1: Write the proportion equation
802,638.72 : 1,202,998.53 = 611,615.21 : x - Step 2: Convert to fraction form
802,638.72/1,202,998.53 = 611,615.21/x - Step 3: Cross multiply
802,638.72x = 1,202,998.53 × 611,615.21 - Step 4: Simplify right side
802,638.72x = 735,772,194,834.21 - Step 5: Solve for x
x = 735,772,194,834.21/802,638.72 - Step 6: Final answer
x = 916,691.63
Related Problems
Find fourth proportional to 401,319.36, 601,499.27 and 305,807.60
Half scale
Find fourth proportional to 1,605,277.44, 2,405,997.07 and 1,223,230.41
Double scale
Find fourth proportional to 802,639.72, 1,203,000.03 and 611,616.21
Similar ratio
Find fourth proportional to 1,203,958.08, 1,804,497.80 and 917,422.81
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.