Finding the Fourth Proportional to 453,139.60, 678,931.80 and 295,286.80
Calculator
Solution
The fourth proportional to 453,139.60, 678,931.80 and 295,286.80 is: 442,423.48
Step by Step Solution
- Step 1: Write the proportion equation
453,139.60 : 678,931.80 = 295,286.80 : x - Step 2: Convert to fraction form
453,139.60/678,931.80 = 295,286.80/x - Step 3: Cross multiply
453,139.60x = 678,931.80 × 295,286.80 - Step 4: Simplify right side
453,139.60x = 200,479,598,640.24 - Step 5: Solve for x
x = 200,479,598,640.24/453,139.60 - Step 6: Final answer
x = 442,423.48
Related Problems
Find fourth proportional to 226,569.80, 339,465.90 and 147,643.40
Half scale
Find fourth proportional to 906,279.20, 1,357,863.60 and 590,573.60
Double scale
Find fourth proportional to 453,140.60, 678,933.30 and 295,287.80
Similar ratio
Find fourth proportional to 679,709.40, 1,018,397.70 and 442,930.20
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.