Finding the Fourth Proportional to 897,056.13, 1,237,928.42 and 489,156.94
Calculator
Solution
The fourth proportional to 897,056.13, 1,237,928.42 and 489,156.94 is: 675,031.65
Step by Step Solution
- Step 1: Write the proportion equation
897,056.13 : 1,237,928.42 = 489,156.94 : x - Step 2: Convert to fraction form
897,056.13/1,237,928.42 = 489,156.94/x - Step 3: Cross multiply
897,056.13x = 1,237,928.42 × 489,156.94 - Step 4: Simplify right side
897,056.13x = 605,541,277,866.24 - Step 5: Solve for x
x = 605,541,277,866.24/897,056.13 - Step 6: Final answer
x = 675,031.65
Related Problems
Find fourth proportional to 448,528.07, 618,964.21 and 244,578.47
Half scale
Find fourth proportional to 1,794,112.26, 2,475,856.84 and 978,313.88
Double scale
Find fourth proportional to 897,057.13, 1,237,929.80 and 489,157.94
Similar ratio
Find fourth proportional to 1,345,584.20, 1,856,892.63 and 733,735.41
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.