Finding the Fourth Proportional to 887,164.75, 1,331,128.49 and 288,309.48
Calculator
Solution
The fourth proportional to 887,164.75, 1,331,128.49 and 288,309.48 is: 432,588.15
Step by Step Solution
- Step 1: Write the proportion equation
887,164.75 : 1,331,128.49 = 288,309.48 : x - Step 2: Convert to fraction form
887,164.75/1,331,128.49 = 288,309.48/x - Step 3: Cross multiply
887,164.75x = 1,331,128.49 × 288,309.48 - Step 4: Simplify right side
887,164.75x = 383,776,956,331.81 - Step 5: Solve for x
x = 383,776,956,331.81/887,164.75 - Step 6: Final answer
x = 432,588.15
Related Problems
Find fourth proportional to 443,582.38, 665,564.24 and 144,154.74
Half scale
Find fourth proportional to 1,774,329.50, 2,662,256.97 and 576,618.95
Double scale
Find fourth proportional to 887,165.75, 1,331,129.99 and 288,310.48
Similar ratio
Find fourth proportional to 1,330,747.13, 1,996,692.73 and 432,464.21
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.