Finding the Fourth Proportional to 577,909.40, 865,697.70 and 328,299.80
Calculator
Solution
The fourth proportional to 577,909.40, 865,697.70 and 328,299.80 is: 491,787.09
Step by Step Solution
- Step 1: Write the proportion equation
577,909.40 : 865,697.70 = 328,299.80 : x - Step 2: Convert to fraction form
577,909.40/865,697.70 = 328,299.80/x - Step 3: Cross multiply
577,909.40x = 865,697.70 × 328,299.80 - Step 4: Simplify right side
577,909.40x = 284,208,381,770.46 - Step 5: Solve for x
x = 284,208,381,770.46/577,909.40 - Step 6: Final answer
x = 491,787.09
Related Problems
Find fourth proportional to 288,954.70, 432,848.85 and 164,149.90
Half scale
Find fourth proportional to 1,155,818.80, 1,731,395.40 and 656,599.60
Double scale
Find fourth proportional to 577,910.40, 865,699.20 and 328,300.80
Similar ratio
Find fourth proportional to 866,864.10, 1,298,546.55 and 492,449.70
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.