Finding the Fourth Proportional to 942,138.08, 1,412,638.19 and 422,718.49
Calculator
Solution
The fourth proportional to 942,138.08, 1,412,638.19 and 422,718.49 is: 633,822.46
Step by Step Solution
- Step 1: Write the proportion equation
942,138.08 : 1,412,638.19 = 422,718.49 : x - Step 2: Convert to fraction form
942,138.08/1,412,638.19 = 422,718.49/x - Step 3: Cross multiply
942,138.08x = 1,412,638.19 × 422,718.49 - Step 4: Simplify right side
942,138.08x = 597,148,276,947.95 - Step 5: Solve for x
x = 597,148,276,947.95/942,138.08 - Step 6: Final answer
x = 633,822.46
Related Problems
Find fourth proportional to 471,069.04, 706,319.09 and 211,359.24
Half scale
Find fourth proportional to 1,884,276.15, 2,825,276.37 and 845,436.98
Double scale
Find fourth proportional to 942,139.08, 1,412,639.68 and 422,719.49
Similar ratio
Find fourth proportional to 1,413,207.11, 2,118,957.28 and 634,077.73
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.