Finding the Fourth Proportional to 994,495.60, 1,492,909.80 and 987,497.20
Calculator
Solution
The fourth proportional to 994,495.60, 1,492,909.80 and 987,497.20 is: 1,482,403.99
Step by Step Solution
- Step 1: Write the proportion equation
994,495.60 : 1,492,909.80 = 987,497.20 : x - Step 2: Convert to fraction form
994,495.60/1,492,909.80 = 987,497.20/x - Step 3: Cross multiply
994,495.60x = 1,492,909.80 × 987,497.20 - Step 4: Simplify right side
994,495.60x = 1,474,244,247,352.56 - Step 5: Solve for x
x = 1,474,244,247,352.56/994,495.60 - Step 6: Final answer
x = 1,482,403.99
Related Problems
Find fourth proportional to 497,247.80, 746,454.90 and 493,748.60
Half scale
Find fourth proportional to 1,988,991.20, 2,985,819.60 and 1,974,994.40
Double scale
Find fourth proportional to 994,496.60, 1,492,911.30 and 987,498.20
Similar ratio
Find fourth proportional to 1,491,743.40, 2,239,364.70 and 1,481,245.80
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.