Finding the Fourth Proportional to 411,428.57, 567,542.79 and 239,327.17
Calculator
Solution
The fourth proportional to 411,428.57, 567,542.79 and 239,327.17 is: 330,138.50
Step by Step Solution
- Step 1: Write the proportion equation
411,428.57 : 567,542.79 = 239,327.17 : x - Step 2: Convert to fraction form
411,428.57/567,542.79 = 239,327.17/x - Step 3: Cross multiply
411,428.57x = 567,542.79 × 239,327.17 - Step 4: Simplify right side
411,428.57x = 135,828,409,784.60 - Step 5: Solve for x
x = 135,828,409,784.60/411,428.57 - Step 6: Final answer
x = 330,138.50
Related Problems
Find fourth proportional to 205,714.29, 283,771.40 and 119,663.59
Half scale
Find fourth proportional to 822,857.14, 1,135,085.58 and 478,654.34
Double scale
Find fourth proportional to 411,429.57, 567,544.17 and 239,328.17
Similar ratio
Find fourth proportional to 617,142.86, 851,314.19 and 358,990.76
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.