Finding the Fourth Proportional to 674,312.40, 930,569.40 and 402,538.09
Calculator
Solution
The fourth proportional to 674,312.40, 930,569.40 and 402,538.09 is: 555,513.48
Step by Step Solution
- Step 1: Write the proportion equation
674,312.40 : 930,569.40 = 402,538.09 : x - Step 2: Convert to fraction form
674,312.40/930,569.40 = 402,538.09/x - Step 3: Cross multiply
674,312.40x = 930,569.40 × 402,538.09 - Step 4: Simplify right side
674,312.40x = 374,589,628,888.45 - Step 5: Solve for x
x = 374,589,628,888.45/674,312.40 - Step 6: Final answer
x = 555,513.48
Related Problems
Find fourth proportional to 337,156.20, 465,284.70 and 201,269.05
Half scale
Find fourth proportional to 1,348,624.80, 1,861,138.80 and 805,076.18
Double scale
Find fourth proportional to 674,313.40, 930,570.78 and 402,539.09
Similar ratio
Find fourth proportional to 1,011,468.60, 1,395,854.10 and 603,807.14
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.