Finding the Fourth Proportional to 591.99, 888 and 489.09
Calculator
Solution
The fourth proportional to 591.99, 888 and 489.09 is: 733.65
Step by Step Solution
- Step 1: Write the proportion equation
591.99 : 888 = 489.09 : x - Step 2: Convert to fraction form
591.99/888 = 489.09/x - Step 3: Cross multiply
591.99x = 888 × 489.09 - Step 4: Simplify right side
591.99x = 434,311.92 - Step 5: Solve for x
x = 434,311.92/591.99 - Step 6: Final answer
x = 733.65
Related Problems
Find fourth proportional to 296.00, 444 and 244.55
Half scale
Find fourth proportional to 1,183.98, 1,776 and 978.18
Double scale
Find fourth proportional to 592.99, 889.50 and 490.09
Similar ratio
Find fourth proportional to 887.99, 1,332 and 733.64
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.