Finding the Fourth Proportional to 686,769.12, 1,030,437.12 and 370,854
Calculator
Solution
The fourth proportional to 686,769.12, 1,030,437.12 and 370,854 is: 556,434.06
Step by Step Solution
- Step 1: Write the proportion equation
686,769.12 : 1,030,437.12 = 370,854 : x - Step 2: Convert to fraction form
686,769.12/1,030,437.12 = 370,854/x - Step 3: Cross multiply
686,769.12x = 1,030,437.12 × 370,854 - Step 4: Simplify right side
686,769.12x = 382,141,727,700.48 - Step 5: Solve for x
x = 382,141,727,700.48/686,769.12 - Step 6: Final answer
x = 556,434.06
Related Problems
Find fourth proportional to 343,384.56, 515,218.56 and 185,427
Half scale
Find fourth proportional to 1,373,538.24, 2,060,874.24 and 741,708
Double scale
Find fourth proportional to 686,770.12, 1,030,438.62 and 370,855
Similar ratio
Find fourth proportional to 1,030,153.68, 1,545,655.68 and 556,281
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.