Finding the Fourth Proportional to 788,977.79, 1,088,794.35 and 426,400.80
Calculator
Solution
The fourth proportional to 788,977.79, 1,088,794.35 and 426,400.80 is: 588,435.80
Step by Step Solution
- Step 1: Write the proportion equation
788,977.79 : 1,088,794.35 = 426,400.80 : x - Step 2: Convert to fraction form
788,977.79/1,088,794.35 = 426,400.80/x - Step 3: Cross multiply
788,977.79x = 1,088,794.35 × 426,400.80 - Step 4: Simplify right side
788,977.79x = 464,262,779,743.48 - Step 5: Solve for x
x = 464,262,779,743.48/788,977.79 - Step 6: Final answer
x = 588,435.80
Related Problems
Find fourth proportional to 394,488.90, 544,397.17 and 213,200.40
Half scale
Find fourth proportional to 1,577,955.58, 2,177,588.69 and 852,801.60
Double scale
Find fourth proportional to 788,978.79, 1,088,795.73 and 426,401.80
Similar ratio
Find fourth proportional to 1,183,466.69, 1,633,191.52 and 639,601.20
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.