Finding the Fourth Proportional to 488,330.10, 731,620.35 and 418,346.10
Calculator
Solution
The fourth proportional to 488,330.10, 731,620.35 and 418,346.10 is: 626,769.72
Step by Step Solution
- Step 1: Write the proportion equation
488,330.10 : 731,620.35 = 418,346.10 : x - Step 2: Convert to fraction form
488,330.10/731,620.35 = 418,346.10/x - Step 3: Cross multiply
488,330.10x = 731,620.35 × 418,346.10 - Step 4: Simplify right side
488,330.10x = 306,070,520,103.14 - Step 5: Solve for x
x = 306,070,520,103.14/488,330.10 - Step 6: Final answer
x = 626,769.72
Related Problems
Find fourth proportional to 244,165.05, 365,810.18 and 209,173.05
Half scale
Find fourth proportional to 976,660.20, 1,463,240.70 and 836,692.20
Double scale
Find fourth proportional to 488,331.10, 731,621.85 and 418,347.10
Similar ratio
Find fourth proportional to 732,495.15, 1,097,430.53 and 627,519.15
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.