Finding the Fourth Proportional to 930,513.24, 1,284,147.90 and 528,142.68
Calculator
Solution
The fourth proportional to 930,513.24, 1,284,147.90 and 528,142.68 is: 728,859.39
Step by Step Solution
- Step 1: Write the proportion equation
930,513.24 : 1,284,147.90 = 528,142.68 : x - Step 2: Convert to fraction form
930,513.24/1,284,147.90 = 528,142.68/x - Step 3: Cross multiply
930,513.24x = 1,284,147.90 × 528,142.68 - Step 4: Simplify right side
930,513.24x = 678,213,313,422.37 - Step 5: Solve for x
x = 678,213,313,422.37/930,513.24 - Step 6: Final answer
x = 728,859.39
Related Problems
Find fourth proportional to 465,256.62, 642,073.95 and 264,071.34
Half scale
Find fourth proportional to 1,861,026.48, 2,568,295.80 and 1,056,285.36
Double scale
Find fourth proportional to 930,514.24, 1,284,149.28 and 528,143.68
Similar ratio
Find fourth proportional to 1,395,769.86, 1,926,221.85 and 792,214.02
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.