Finding the Fourth Proportional to 420,434.36, 580,201.04 and 229,452
Calculator
Solution
The fourth proportional to 420,434.36, 580,201.04 and 229,452 is: 316,644.65
Step by Step Solution
- Step 1: Write the proportion equation
420,434.36 : 580,201.04 = 229,452 : x - Step 2: Convert to fraction form
420,434.36/580,201.04 = 229,452/x - Step 3: Cross multiply
420,434.36x = 580,201.04 × 229,452 - Step 4: Simplify right side
420,434.36x = 133,128,289,030.08 - Step 5: Solve for x
x = 133,128,289,030.08/420,434.36 - Step 6: Final answer
x = 316,644.65
Related Problems
Find fourth proportional to 210,217.18, 290,100.52 and 114,726
Half scale
Find fourth proportional to 840,868.72, 1,160,402.08 and 458,904
Double scale
Find fourth proportional to 420,435.36, 580,202.42 and 229,453
Similar ratio
Find fourth proportional to 630,651.54, 870,301.56 and 344,178
1.5x scale
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.