Finding the Fourth Proportional to 842,311.05, 1,263,091.14 and 243,129.75
Calculator
Solution
The fourth proportional to 842,311.05, 1,263,091.14 and 243,129.75 is: 364,586.26
Step by Step Solution
- Step 1: Write the proportion equation
842,311.05 : 1,263,091.14 = 243,129.75 : x - Step 2: Convert to fraction form
842,311.05/1,263,091.14 = 243,129.75/x - Step 3: Cross multiply
842,311.05x = 1,263,091.14 × 243,129.75 - Step 4: Simplify right side
842,311.05x = 307,095,033,095.42 - Step 5: Solve for x
x = 307,095,033,095.42/842,311.05 - Step 6: Final answer
x = 364,586.26
Related Problems
Find fourth proportional to 421,155.53, 631,545.57 and 121,564.88
Half scale
Find fourth proportional to 1,684,622.10, 2,526,182.28 and 486,259.50
Double scale
Find fourth proportional to 842,312.05, 1,263,092.64 and 243,130.75
Similar ratio
Find fourth proportional to 1,263,466.58, 1,894,636.71 and 364,694.63
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.