Finding the Fourth Proportional to 1,869,560.76, 2,805,170.58 and 1,389,315
Calculator
Solution
The fourth proportional to 1,869,560.76, 2,805,170.58 and 1,389,315 is: 2,084,588.88
Step by Step Solution
- Step 1: Write the proportion equation
1,869,560.76 : 2,805,170.58 = 1,389,315 : x - Step 2: Convert to fraction form
1,869,560.76/2,805,170.58 = 1,389,315/x - Step 3: Cross multiply
1,869,560.76x = 2,805,170.58 × 1,389,315 - Step 4: Simplify right side
1,869,560.76x = 3,897,265,564,352.70 - Step 5: Solve for x
x = 3,897,265,564,352.70/1,869,560.76 - Step 6: Final answer
x = 2,084,588.88
Related Problems
Find fourth proportional to 934,780.38, 1,402,585.29 and 694,657.50
Half scale
Find fourth proportional to 3,739,121.52, 5,610,341.16 and 2,778,630
Double scale
Find fourth proportional to 1,869,561.76, 2,805,172.08 and 1,389,316
Similar ratio
Find fourth proportional to 2,804,341.14, 4,207,755.87 and 2,083,972.50
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.