Finding the Fourth Proportional to 887,257.80, 1,330,886.70 and 747,289.80
Calculator
Solution
The fourth proportional to 887,257.80, 1,330,886.70 and 747,289.80 is: 1,120,934.70
Step by Step Solution
- Step 1: Write the proportion equation
887,257.80 : 1,330,886.70 = 747,289.80 : x - Step 2: Convert to fraction form
887,257.80/1,330,886.70 = 747,289.80/x - Step 3: Cross multiply
887,257.80x = 1,330,886.70 × 747,289.80 - Step 4: Simplify right side
887,257.80x = 994,558,055,865.66 - Step 5: Solve for x
x = 994,558,055,865.66/887,257.80 - Step 6: Final answer
x = 1,120,934.70
Related Problems
Find fourth proportional to 443,628.90, 665,443.35 and 373,644.90
Half scale
Find fourth proportional to 1,774,515.60, 2,661,773.40 and 1,494,579.60
Double scale
Find fourth proportional to 887,258.80, 1,330,888.20 and 747,290.80
Similar ratio
Find fourth proportional to 1,330,886.70, 1,996,330.05 and 1,120,934.70
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.