Finding the Fourth Proportional to 497,443.97, 686,277.81 and 306,125.21
Calculator
Solution
The fourth proportional to 497,443.97, 686,277.81 and 306,125.21 is: 422,332.87
Step by Step Solution
- Step 1: Write the proportion equation
497,443.97 : 686,277.81 = 306,125.21 : x - Step 2: Convert to fraction form
497,443.97/686,277.81 = 306,125.21/x - Step 3: Cross multiply
497,443.97x = 686,277.81 × 306,125.21 - Step 4: Simplify right side
497,443.97x = 210,086,935,273.20 - Step 5: Solve for x
x = 210,086,935,273.20/497,443.97 - Step 6: Final answer
x = 422,332.87
Related Problems
Find fourth proportional to 248,721.98, 343,138.91 and 153,062.60
Half scale
Find fourth proportional to 994,887.93, 1,372,555.62 and 612,250.41
Double scale
Find fourth proportional to 497,444.97, 686,279.19 and 306,126.21
Similar ratio
Find fourth proportional to 746,165.95, 1,029,416.72 and 459,187.81
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.