Finding the Fourth Proportional to 510,727.68, 704,799.36 and 284,359.68
Calculator
Solution
The fourth proportional to 510,727.68, 704,799.36 and 284,359.68 is: 392,413.66
Step by Step Solution
- Step 1: Write the proportion equation
510,727.68 : 704,799.36 = 284,359.68 : x - Step 2: Convert to fraction form
510,727.68/704,799.36 = 284,359.68/x - Step 3: Cross multiply
510,727.68x = 704,799.36 × 284,359.68 - Step 4: Simplify right side
510,727.68x = 200,416,520,473.81 - Step 5: Solve for x
x = 200,416,520,473.81/510,727.68 - Step 6: Final answer
x = 392,413.66
Related Problems
Find fourth proportional to 255,363.84, 352,399.68 and 142,179.84
Half scale
Find fourth proportional to 1,021,455.36, 1,409,598.72 and 568,719.36
Double scale
Find fourth proportional to 510,728.68, 704,800.74 and 284,360.68
Similar ratio
Find fourth proportional to 766,091.52, 1,057,199.04 and 426,539.52
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.