Finding the Fourth Proportional to 988,539.12, 1,364,182.68 and 535,830
Calculator
Solution
The fourth proportional to 988,539.12, 1,364,182.68 and 535,830 is: 739,444.69
Step by Step Solution
- Step 1: Write the proportion equation
988,539.12 : 1,364,182.68 = 535,830 : x - Step 2: Convert to fraction form
988,539.12/1,364,182.68 = 535,830/x - Step 3: Cross multiply
988,539.12x = 1,364,182.68 × 535,830 - Step 4: Simplify right side
988,539.12x = 730,970,005,424.40 - Step 5: Solve for x
x = 730,970,005,424.40/988,539.12 - Step 6: Final answer
x = 739,444.69
Related Problems
Find fourth proportional to 494,269.56, 682,091.34 and 267,915
Half scale
Find fourth proportional to 1,977,078.24, 2,728,365.36 and 1,071,660
Double scale
Find fourth proportional to 988,540.12, 1,364,184.06 and 535,831
Similar ratio
Find fourth proportional to 1,482,808.68, 2,046,274.02 and 803,745
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.