Finding the Fourth Proportional to 916,799.30, 1,265,119.68 and 508,869.08
Calculator
Solution
The fourth proportional to 916,799.30, 1,265,119.68 and 508,869.08 is: 702,204.17
Step by Step Solution
- Step 1: Write the proportion equation
916,799.30 : 1,265,119.68 = 508,869.08 : x - Step 2: Convert to fraction form
916,799.30/1,265,119.68 = 508,869.08/x - Step 3: Cross multiply
916,799.30x = 1,265,119.68 × 508,869.08 - Step 4: Simplify right side
916,799.30x = 643,780,287,651.49 - Step 5: Solve for x
x = 643,780,287,651.49/916,799.30 - Step 6: Final answer
x = 702,204.17
Related Problems
Find fourth proportional to 458,399.65, 632,559.84 and 254,434.54
Half scale
Find fourth proportional to 1,833,598.60, 2,530,239.36 and 1,017,738.16
Double scale
Find fourth proportional to 916,800.30, 1,265,121.06 and 508,870.08
Similar ratio
Find fourth proportional to 1,375,198.95, 1,897,679.52 and 763,303.62
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.