Finding the Fourth Proportional to 845,579.40, 1,266,679.11 and 508,435.44
Calculator
Solution
The fourth proportional to 845,579.40, 1,266,679.11 and 508,435.44 is: 761,636.99
Step by Step Solution
- Step 1: Write the proportion equation
845,579.40 : 1,266,679.11 = 508,435.44 : x - Step 2: Convert to fraction form
845,579.40/1,266,679.11 = 508,435.44/x - Step 3: Cross multiply
845,579.40x = 1,266,679.11 × 508,435.44 - Step 4: Simplify right side
845,579.40x = 644,024,550,631.66 - Step 5: Solve for x
x = 644,024,550,631.66/845,579.40 - Step 6: Final answer
x = 761,636.99
Related Problems
Find fourth proportional to 422,789.70, 633,339.56 and 254,217.72
Half scale
Find fourth proportional to 1,691,158.80, 2,533,358.22 and 1,016,870.88
Double scale
Find fourth proportional to 845,580.40, 1,266,680.61 and 508,436.44
Similar ratio
Find fourth proportional to 1,268,369.10, 1,900,018.67 and 762,653.16
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.