Finding the Fourth Proportional to 983,557.09, 1,357,458.65 and 708,826.15
Calculator
Solution
The fourth proportional to 983,557.09, 1,357,458.65 and 708,826.15 is: 978,288.09
Step by Step Solution
- Step 1: Write the proportion equation
983,557.09 : 1,357,458.65 = 708,826.15 : x - Step 2: Convert to fraction form
983,557.09/1,357,458.65 = 708,826.15/x - Step 3: Cross multiply
983,557.09x = 1,357,458.65 × 708,826.15 - Step 4: Simplify right side
983,557.09x = 962,202,188,663.70 - Step 5: Solve for x
x = 962,202,188,663.70/983,557.09 - Step 6: Final answer
x = 978,288.09
Related Problems
Find fourth proportional to 491,778.55, 678,729.33 and 354,413.08
Half scale
Find fourth proportional to 1,967,114.18, 2,714,917.30 and 1,417,652.30
Double scale
Find fourth proportional to 983,558.09, 1,357,460.03 and 708,827.15
Similar ratio
Find fourth proportional to 1,475,335.64, 2,036,187.98 and 1,063,239.23
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.