Finding the Fourth Proportional to 856,811.20, 1,180,923.60 and 569,818.48
Calculator
Solution
The fourth proportional to 856,811.20, 1,180,923.60 and 569,818.48 is: 785,367.99
Step by Step Solution
- Step 1: Write the proportion equation
856,811.20 : 1,180,923.60 = 569,818.48 : x - Step 2: Convert to fraction form
856,811.20/1,180,923.60 = 569,818.48/x - Step 3: Cross multiply
856,811.20x = 1,180,923.60 × 569,818.48 - Step 4: Simplify right side
856,811.20x = 672,912,090,748.13 - Step 5: Solve for x
x = 672,912,090,748.13/856,811.20 - Step 6: Final answer
x = 785,367.99
Related Problems
Find fourth proportional to 428,405.60, 590,461.80 and 284,909.24
Half scale
Find fourth proportional to 1,713,622.40, 2,361,847.20 and 1,139,636.96
Double scale
Find fourth proportional to 856,812.20, 1,180,924.98 and 569,819.48
Similar ratio
Find fourth proportional to 1,285,216.80, 1,771,385.40 and 854,727.72
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.