Finding the Fourth Proportional to 774,789.62, 1,069,203.98 and 435,257.87
Calculator
Solution
The fourth proportional to 774,789.62, 1,069,203.98 and 435,257.87 is: 600,652.66
Step by Step Solution
- Step 1: Write the proportion equation
774,789.62 : 1,069,203.98 = 435,257.87 : x - Step 2: Convert to fraction form
774,789.62/1,069,203.98 = 435,257.87/x - Step 3: Cross multiply
774,789.62x = 1,069,203.98 × 435,257.87 - Step 4: Simplify right side
774,789.62x = 465,379,442,672.45 - Step 5: Solve for x
x = 465,379,442,672.45/774,789.62 - Step 6: Final answer
x = 600,652.66
Related Problems
Find fourth proportional to 387,394.81, 534,601.99 and 217,628.93
Half scale
Find fourth proportional to 1,549,579.23, 2,138,407.97 and 870,515.73
Double scale
Find fourth proportional to 774,790.62, 1,069,205.36 and 435,258.87
Similar ratio
Find fourth proportional to 1,162,184.42, 1,603,805.97 and 652,886.80
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.